diff --git a/built_doc/top2.html b/built_doc/top2.html
index b47fd2b..767ba3c 100644
--- a/built_doc/top2.html
+++ b/built_doc/top2.html
@@ -2,7 +2,7 @@
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+<meta name="generator" content="hevea 2.38">
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@@ -35,7 +35,7 @@
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@@ -47,17 +47,26 @@
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@@ -212,23 +221,23 @@ <h2 id="sec2" class="section">1&#X2003;Introduction</h2><!--SEC END --><p><a id=
 them by typeset terms.</p><p>This document is a user guide for the tool. The papers
 </p><ul class="itemize"><li class="li-itemize"><a href="http://www.cl.cam.ac.uk/users/pes20/ott/ott-jfp.pdf">Ott: Effective Tool Support for the Working Semanticist</a>. Peter Sewell, Francesco Zappa Nardelli, Scott Owens, Gilles
 Peskine, Thomas Ridge, Susmit Sarkar, Rok Strni&#X161;a. 
-Journal of Functional Programming 20(1):71-122, 2010 [<a href="#ott-jfp"></a>].</li><li class="li-itemize"><a href="http://www.cl.cam.ac.uk/users/pes20/ott/paper.pdf">Ott: Effective Tool Support for the Working Semanticist</a>. Peter Sewell, Francesco Zappa Nardelli, Scott Owens, Gilles
+Journal of Functional Programming 20(1):71-122, 2010 [<a href="#ott-jfp">SZNO+10</a>].</li><li class="li-itemize"><a href="http://www.cl.cam.ac.uk/users/pes20/ott/paper.pdf">Ott: Effective Tool Support for the Working Semanticist</a>. Peter Sewell, Francesco Zappa Nardelli, Scott Owens, Gilles
 Peskine, Thomas Ridge, Susmit Sarkar, Rok Strni&#X161;a. 
-ICFP&#X2019;07 [<a href="#ott-sub"></a>].</li></ul><p>
+ICFP&#X2019;07 [<a href="#ott-sub">SZNO+07</a>].</li></ul><p>
 give an overview of the project, including discussion of motivation,
 design decisions, and related work, and one should look at that together
 with this manual. The project web page
 </p><blockquote class="quotation">
-<a href="http://www.cl.cam.ac.uk/users/pes20/ott/"><span style="font-family:monospace">http://www.cl.cam.ac.uk/users/pes20/ott/</span></a>
+<a href="http://www.cl.cam.ac.uk/users/pes20/ott/"><span class="tt">http://www.cl.cam.ac.uk/users/pes20/ott/</span></a>
 </blockquote><p>
 links to the github source repository, with a
 BSD-style licence. It also has a range of examples, including
 untyped and simply typed CBV lambda calculus, ML polymorphism, various
-first-order systems from Pierce&#X2019;s TAPL&#XA0;[<a href="#Pierce%3ATypeSystems"></a>], the
-POPLmark F<sub>&lt;:</sub> language&#XA0;[<a href="#poplmark"></a>], a module system by
-Leroy&#XA0;[<a href="#Leroy-generativity"></a>, &#XA7;4] (extended with a term language and an
+first-order systems from Pierce&#X2019;s TAPL&#XA0;[<a href="#Pierce%3ATypeSystems">Pie02</a>], the
+POPLmark F<sub>&lt;:</sub> language&#XA0;[<a href="#poplmark">ABF+05</a>], a module system by
+Leroy&#XA0;[<a href="#Leroy-generativity">Ler96</a>, &#XA7;4] (extended with a term language and an
 operational semantics), the LJ Java fragment and LJAM Java module
-system&#XA0;[<a href="#ljam-sub"></a>], and a substantial fragment of OCaml.</p><p>Our main goal is to support work on large programming language
+system&#XA0;[<a href="#ljam-sub">SSP07</a>], and a substantial fragment of OCaml.</p><p>Our main goal is to support work on large programming language
 definitions, where the scale makes it hard to keep a definition
 internally consistent, and hard to keep a tight correspondence between a
 definition and implementations.
@@ -349,38 +358,38 @@ <h4 id="sec8" class="subsubsection">2.4.1&#X2003;With opam (released
 version)</h4><!--SEC END --><p></a></p><p>First, ensure you have opam (the OCaml package manager) installed,
 version 2.0 or greater (opam 1 versions of ott are no longer supported).
 You can use your system&#X2019;s package manager
-e.g.&#XA0;<span style="font-family:monospace">sudo apt-get install opam</span> (e.g.&#XA0;on Ubuntu 20.04) or
+e.g.&#XA0;<span class="tt">sudo apt-get install opam</span> (e.g.&#XA0;on Ubuntu 20.04) or
 follow the <a href="https://opam.ocaml.org/doc/Install.html">instructions
 from the opam website</a>. On older Ubuntu versions you will not be able to
 use their package manager&#X2019;s opam 1 version, and will need to install
-opam 2 following the instructions on the opam website.</p><p>Then <span style="font-family:monospace">opam install ott</span> will install the latest Ott version.
+opam 2 following the instructions on the opam website.</p><p>Then <span class="tt">opam install ott</span> will install the latest Ott version.
 The Emacs mode will be in
-<span style="font-family:monospace">$(opam config var prefix)/share/emacs/site-lisp</span>, and
-documentation in <span style="font-family:monospace">$(opam config var prefix)/doc/ott</span>.</p><p>If you want to use Ott with the Coq proof assistant, to install the Ott
-auxiliary files for Coq, first activate the <span style="font-family:monospace">coq-released</span> OPAM
-repository:</p><p><span style="font-family:monospace">opam repo add coq-released https://coq.inria.fr/opam/released</span></p><p>and then run <span style="font-family:monospace">opam install coq-ott</span>.</p><p><a id="with-opam-github-checkout"></p>
+<span class="tt">$(opam config var prefix)/share/emacs/site-lisp</span>, and
+documentation in <span class="tt">$(opam config var prefix)/doc/ott</span>.</p><p>If you want to use Ott with the Coq proof assistant, to install the Ott
+auxiliary files for Coq, first activate the <span class="tt">coq-released</span> OPAM
+repository:</p><p><span class="tt">opam repo add coq-released https://coq.inria.fr/opam/released</span></p><p>and then run <span class="tt">opam install coq-ott</span>.</p><p><a id="with-opam-github-checkout"></p>
 <!--TOC subsubsection id="sec9" With opam (github
 checkout)-->
 <h4 id="sec9" class="subsubsection">2.4.2&#X2003;With opam (github
-checkout)</h4><!--SEC END --><p></a></p><p>In the checkout directory, run <span style="font-family:monospace">opam pin add ott .</span>.</p><p>To rebuild and reinstall after local changes, run
-<span style="font-family:monospace">opam upgrade --working-dir ott</span> (or
-<span style="font-family:monospace">opam upgrade -w ott</span>).</p><p><a id="without-opam"></p>
+checkout)</h4><!--SEC END --><p></a></p><p>In the checkout directory, run <span class="tt">opam pin add ott .</span>.</p><p>To rebuild and reinstall after local changes, run
+<span class="tt">opam upgrade --working-dir ott</span> (or
+<span class="tt">opam upgrade -w ott</span>).</p><p><a id="without-opam"></p>
 <!--TOC subsubsection id="sec10" Without opam-->
 <h4 id="sec10" class="subsubsection">2.4.3&#X2003;Without opam</h4><!--SEC END --><p></a></p><p>Ott depends on OCaml version 4.07.0 or later and the ocamlgraph package.
-It builds with (at least) OCaml 4.07.0 and 4.14.0, and ocamlgraph 1.8.8.</p><p>The command <span style="font-family:monospace">make</span> (<span style="font-family:monospace">make world</span>) builds the <span style="font-family:monospace">ott</span>
-binary in the <span style="font-family:monospace">bin/</span> subdirectory.</p><p>This will compile Ott using <span style="font-family:monospace">ocamlopt</span>. To force it to compile
-with <span style="font-family:monospace">ocamlc</span> (which may give significantly slower execution of
-Ott), do <span style="font-family:monospace">make world.byt</span>.</p><p>To build the Ott auxiliary files for Coq, go to the <span style="font-family:monospace">coq/</span>
-subdirectory and run <span style="font-family:monospace">make</span>. To install the resulting files in
-Coq&#X2019;s <span style="font-family:monospace">user-contrib</span>, run <span style="font-family:monospace">make install</span>.</p><p><a id="to-run"></p>
+It builds with (at least) OCaml 4.07.0 and 4.14.0, and ocamlgraph 1.8.8.</p><p>The command <span class="tt">make</span> (<span class="tt">make world</span>) builds the <span class="tt">ott</span>
+binary in the <span class="tt">bin/</span> subdirectory.</p><p>This will compile Ott using <span class="tt">ocamlopt</span>. To force it to compile
+with <span class="tt">ocamlc</span> (which may give significantly slower execution of
+Ott), do <span class="tt">make world.byt</span>.</p><p>To build the Ott auxiliary files for Coq, go to the <span class="tt">coq/</span>
+subdirectory and run <span class="tt">make</span>. To install the resulting files in
+Coq&#X2019;s <span class="tt">user-contrib</span>, run <span class="tt">make install</span>.</p><p><a id="to-run"></p>
 <!--TOC subsection id="sec11" To run-->
-<h3 id="sec11" class="subsection">2.5&#X2003;To run</h3><!--SEC END --><p></a></p><p>Ott runs as a command-line tool. Executing <span style="font-family:monospace">ott</span> shows the usage
-and options. To run Ott on the test file <span style="font-family:monospace">tests/test10.ott</span>,
-generating LaTeX in <span style="font-family:monospace">test10.tex</span> and Coq in <span style="font-family:monospace">test10.v</span>,
-type:</p><p><span style="font-family:monospace">ott -i tests/test10.ott -o test10.tex -o test10.v</span></p><p>Isabelle, HOL, and Lem can be generated with options
-<span style="font-family:monospace">-o test10.thy</span>, <span style="font-family:monospace">-o test10Script.sml</span>, and
-<span style="font-family:monospace">-o test10.lem</span>, respectively.</p><p>The Makefile has various sample targets,
-<span style="font-family:monospace">make tests/test10.out</span>, <span style="font-family:monospace">make test7</span>, etc. Typically
+<h3 id="sec11" class="subsection">2.5&#X2003;To run</h3><!--SEC END --><p></a></p><p>Ott runs as a command-line tool. Executing <span class="tt">ott</span> shows the usage
+and options. To run Ott on the test file <span class="tt">tests/test10.ott</span>,
+generating LaTeX in <span class="tt">test10.tex</span> and Coq in <span class="tt">test10.v</span>,
+type:</p><p><span class="tt">ott -i tests/test10.ott -o test10.tex -o test10.v</span></p><p>Isabelle, HOL, and Lem can be generated with options
+<span class="tt">-o test10.thy</span>, <span class="tt">-o test10Script.sml</span>, and
+<span class="tt">-o test10.lem</span>, respectively.</p><p>The Makefile has various sample targets,
+<span class="tt">make tests/test10.out</span>, <span class="tt">make test7</span>, etc. Typically
 they generate:</p><p>
 
 
@@ -388,30 +397,30 @@ <h3 id="sec11" class="subsection">2.5&#X2003;To run</h3><!--SEC END --><p></a></
 
 filename</td><td style="text-align:left;white-space:nowrap" >description </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">out.tex</span></td><td style="text-align:left;white-space:nowrap" >LaTeX source for a definition </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span class="tt">out.tex</span></td><td style="text-align:left;white-space:nowrap" >LaTeX source for a definition </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">out.ps</span></td><td style="text-align:left;white-space:nowrap" >the postscript built from that </td></tr>
+<span class="tt">out.ps</span></td><td style="text-align:left;white-space:nowrap" >the postscript built from that </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">out.v</span></td><td style="text-align:left;white-space:nowrap" >Coq source </td></tr>
+<span class="tt">out.v</span></td><td style="text-align:left;white-space:nowrap" >Coq source </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">outScript.sml</span></td><td style="text-align:left;white-space:nowrap" >HOL source </td></tr>
+<span class="tt">outScript.sml</span></td><td style="text-align:left;white-space:nowrap" >HOL source </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">out.thy</span></td><td style="text-align:left;white-space:nowrap" >Isabelle source </td></tr>
+<span class="tt">out.thy</span></td><td style="text-align:left;white-space:nowrap" >Isabelle source </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
 </table>
 
-</div><div class="center"><hr class="floatrule"></div></blockquote><p>from files <span style="font-family:monospace">test10.ott</span>, <span style="font-family:monospace">test8.ott</span>, etc., in
-<span style="font-family:monospace">tests/</span>.</p><p><a id="editor-plugins"></p>
+</div><div class="center"><hr class="floatrule"></div></blockquote><p>from files <span class="tt">test10.ott</span>, <span class="tt">test8.ott</span>, etc., in
+<span class="tt">tests/</span>.</p><p><a id="editor-plugins"></p>
 <!--TOC subsection id="sec12" Editor Plugins-->
 <h3 id="sec12" class="subsection">2.6&#X2003;Editor Plugins</h3><!--SEC END --><p></a></p><p><a id="emacs-mode"></p>
 <!--TOC subsubsection id="sec13" Emacs mode-->
-<h4 id="sec13" class="subsubsection">2.6.1&#X2003;Emacs mode</h4><!--SEC END --><p></a></p><p>The file <span style="font-family:monospace">emacs/ott-mode.el</span> defines a very simple Emacs mode for
+<h4 id="sec13" class="subsubsection">2.6.1&#X2003;Emacs mode</h4><!--SEC END --><p></a></p><p>The file <span class="tt">emacs/ott-mode.el</span> defines a very simple Emacs mode for
 syntax highlighting of Ott source files. It can be used by, for example,
-adding the following to your <span style="font-family:monospace">.emacs</span> file, replacing
-<span style="font-family:monospace">PATH</span> by a path to your Ott Emacs directory.</p><pre class="verbatim">(setq load-path (cons (expand-file-name "PATH") load-path))
+adding the following to your <span class="tt">.emacs</span> file, replacing
+<span class="tt">PATH</span> by a path to your Ott Emacs directory.</p><pre class="verbatim">(setq load-path (cons (expand-file-name "PATH") load-path))
 (require 'ott-mode)
 </pre><p>For installations using opam on *nix systems, it is sufficient to use
-the following code, which will call <span style="font-family:monospace">opam config var prefix</span>
+the following code, which will call <span class="tt">opam config var prefix</span>
 at load-time.</p><pre class="verbatim">(setq opam-share (substring (shell-command-to-string "opam config var share") 0 -1))
 (add-to-list 'load-path (concat opam-share "/emacs/site-lisp"))
 (require 'ott-mode)
@@ -440,39 +449,39 @@ <h3 id="sec17" class="subsection">2.9&#X2003;Directory contents</h3><!--SEC END
 
 directory</td><td style="text-align:left;white-space:nowrap" >description </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">bin/</span></td><td style="text-align:left;white-space:nowrap" >the Ott binary </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span class="tt">bin/</span></td><td style="text-align:left;white-space:nowrap" >the Ott binary </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">built_doc/</span></td><td style="text-align:left;white-space:nowrap" >the user guide, in html, pdf, and ps </td></tr>
+<span class="tt">built_doc/</span></td><td style="text-align:left;white-space:nowrap" >the user guide, in html, pdf, and ps </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">coq/</span></td><td style="text-align:left;white-space:nowrap" >auxiliary files for Coq </td></tr>
+<span class="tt">coq/</span></td><td style="text-align:left;white-space:nowrap" >auxiliary files for Coq </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">doc/</span></td><td style="text-align:left;white-space:nowrap" >the user guide sources </td></tr>
+<span class="tt">doc/</span></td><td style="text-align:left;white-space:nowrap" >the user guide sources </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">emacs/</span></td><td style="text-align:left;white-space:nowrap" >an Ott Emacs mode </td></tr>
+<span class="tt">emacs/</span></td><td style="text-align:left;white-space:nowrap" >an Ott Emacs mode </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">examples/</span></td><td style="text-align:left;white-space:nowrap" >some larger example Ott files </td></tr>
+<span class="tt">examples/</span></td><td style="text-align:left;white-space:nowrap" >some larger example Ott files </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">tex/</span></td><td style="text-align:left;white-space:nowrap" >auxiliary files for LaTeX </td></tr>
+<span class="tt">tex/</span></td><td style="text-align:left;white-space:nowrap" >auxiliary files for LaTeX </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">hol/</span></td><td style="text-align:left;white-space:nowrap" >auxiliary files for HOL </td></tr>
+<span class="tt">hol/</span></td><td style="text-align:left;white-space:nowrap" >auxiliary files for HOL </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">menhir/</span></td><td style="text-align:left;white-space:nowrap" >auxiliary files for menhir </td></tr>
+<span class="tt">menhir/</span></td><td style="text-align:left;white-space:nowrap" >auxiliary files for menhir </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">regression/</span></td><td style="text-align:left;white-space:nowrap" >regression-test machinery </td></tr>
+<span class="tt">regression/</span></td><td style="text-align:left;white-space:nowrap" >regression-test machinery </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">tests/</span></td><td style="text-align:left;white-space:nowrap" >various small example Ott files </td></tr>
+<span class="tt">tests/</span></td><td style="text-align:left;white-space:nowrap" >various small example Ott files </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">tools/</span></td><td style="text-align:left;white-space:nowrap" >auxiliary code (y2l) used to build the user guide </td></tr>
+<span class="tt">tools/</span></td><td style="text-align:left;white-space:nowrap" >auxiliary code (y2l) used to build the user guide </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">src/</span></td><td style="text-align:left;white-space:nowrap" >the (OCaml) Ott sources </td></tr>
+<span class="tt">src/</span></td><td style="text-align:left;white-space:nowrap" >the (OCaml) Ott sources </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">Makefile</span></td><td style="text-align:left;white-space:nowrap" >a Makefile for the examples </td></tr>
+<span class="tt">Makefile</span></td><td style="text-align:left;white-space:nowrap" >a Makefile for the examples </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">LICENCE</span></td><td style="text-align:left;white-space:nowrap" >the BSD-style licence terms </td></tr>
+<span class="tt">LICENCE</span></td><td style="text-align:left;white-space:nowrap" >the BSD-style licence terms </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">README.md</span></td><td style="text-align:left;white-space:nowrap" >this file (Section 2 of the user guide) </td></tr>
+<span class="tt">README.md</span></td><td style="text-align:left;white-space:nowrap" >this file (Section 2 of the user guide) </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >
-<span style="font-family:monospace">revisionhistory.txt</span></td><td style="text-align:left;white-space:nowrap" >the revision history </td></tr>
+<span class="tt">revisionhistory.txt</span></td><td style="text-align:left;white-space:nowrap" >the revision history </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
 </table>
 
@@ -494,94 +503,94 @@ <h2 id="sec20" class="section">3&#X2003;A minimal Ott source file: the untyped C
 <span class="lrbox framebox"><div class="minipage"><span style="font-size:small">
 </span><pre><span style="font-size:small">
 % minimal
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">metavar</span></span></span><span style="font-size:small"> termvar</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">,</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">  
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">metavar</span></span></span><span style="font-size:small"> termvar</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">,</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">  
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">grammar</span></span></span><span style="font-size:small">
-t </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X2019;t_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">              
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> x            </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Var
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Lam
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> t t&#X2019;         </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> App 
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> ( t )        </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">S</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Paren
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">{</span></span><span style="font-size:small"> t / x </span><span style="font-size:small"><span style="font-family:monospace">}</span></span><span style="font-size:small"> t&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">M</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Tsub  
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">grammar</span></span></span><span style="font-size:small">
+t </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X2019;t_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">              
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> x            </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Var
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Lam
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> t t&#X2019;         </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> App 
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> ( t )        </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">S</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Paren
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">{</span></span><span style="font-size:small"> t / x </span><span style="font-size:small"><span class="tt">}</span></span><span style="font-size:small"> t&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">M</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Tsub  
 
-v </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X2019;v_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">              
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Lam 
+v </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X2019;v_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">              
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Lam 
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">subrules</span></span></span><span style="font-size:small">
-  v </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;::</span></span></span><span style="font-size:small"> t
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">subrules</span></span></span><span style="font-size:small">
+  v </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;::</span></span></span><span style="font-size:small"> t
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">defns</span></span></span><span style="font-size:small">
-Jop </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">defns</span></span></span><span style="font-size:small">
+Jop </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">
 
- </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">defn</span></span></span><span style="font-size:small">
- t1 --&gt; t2 </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">reduce</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">&#X201D;  </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">by</span></span></span><span style="font-size:small">
+ </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">defn</span></span></span><span style="font-size:small">
+ t1 --&gt; t2 </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">reduce</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">&#X201D;  </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">by</span></span></span><span style="font-size:small">
 
 
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">    --------------------------</span></span></span><span style="font-size:small">  :: ax_app
-    (</span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small">x.t12) v2 --&gt;  </span><span style="font-size:small"><span style="font-family:monospace">{</span></span><span style="font-size:small">v2/x</span><span style="font-size:small"><span style="font-family:monospace">}</span></span><span style="font-size:small">t12
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">    --------------------------</span></span></span><span style="font-size:small">  :: ax_app
+    (</span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small">x.t12) v2 --&gt;  </span><span style="font-size:small"><span class="tt">{</span></span><span style="font-size:small">v2/x</span><span style="font-size:small"><span class="tt">}</span></span><span style="font-size:small">t12
 
     t1 --&gt; t1&#X2019;
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_fun
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_fun
     t1 t --&gt; t1&#X2019; t
 
     t1 --&gt; t1&#X2019;
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_arg
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_arg
     v t1 --&gt; v t1&#X2019;
 </span></pre><span style="font-size:small">
 
 </span></div></span>
-<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 1: Source: <span style="font-family:monospace">test10.0.ott</span><a id="a45"></a></td></tr>
+<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 1: Source: <span class="tt">test10.0.ott</span><a id="a45"></a></td></tr>
 </table></div>
 <div class="center"><hr class="floatrule"></div></blockquote><p>
-The figure is colourised, with Ott keywords like <span style="color:#A51815"><span style="font-family:monospace">this</span></span> and Ott
-symbols such as <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> and <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>. Other user-specific input
-appears like <span style="font-family:monospace">this</span>. Any text between % and the next newline is
-discarded as a comment.</p><p>At the top of the figure, the <span style="color:#A51815"><span style="font-family:monospace">metavar</span></span> declaration introduces
-a sort of <em>metavariables</em> <span style="font-family:monospace">termvar</span> (with synonym <span style="font-family:monospace">x</span>), for term
+The figure is colourised, with Ott keywords like <span style="color:#A51815"><span class="tt">this</span></span> and Ott
+symbols such as <span style="color:#007FFF"><span class="tt">|</span></span> and <span style="color:#007FFF"><span class="tt">::</span></span>. Other user-specific input
+appears like <span class="tt">this</span>. Any text between % and the next newline is
+discarded as a comment.</p><p>At the top of the figure, the <span style="color:#A51815"><span class="tt">metavar</span></span> declaration introduces
+a sort of <em>metavariables</em> <span class="tt">termvar</span> (with synonym <span class="tt">x</span>), for term
 variables.
-The following <span style="color:#A51815"><span style="font-family:monospace">grammar</span></span> introduces two grammar rules, one for terms, with
+The following <span style="color:#A51815"><span class="tt">grammar</span></span> introduces two grammar rules, one for terms, with
 <em>nonterminal root</em>
-<span style="font-family:monospace">t</span>, and one for values <span style="font-family:monospace">v</span>.
+<span class="tt">t</span>, and one for values <span class="tt">v</span>.
 This specifies the concrete syntax of object-language terms,
 the abstract syntax representations for proof-assistant mathematics,
-and the syntax of symbolic terms to be used in semantic rules.</p><p>Each rule has a rule name prefix (e.g.&#XA0;<span style="font-family:monospace">&#X2019;t_&#X2019;</span>) and then a list
+and the syntax of symbolic terms to be used in semantic rules.</p><p>Each rule has a rule name prefix (e.g.&#XA0;<span class="tt">&#X2019;t_&#X2019;</span>) and then a list
 of productions. Each production, e.g.
 </p><pre>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">\</span> x . t      <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam
+  <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">\</span> x . t      <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> Lam
 </pre><p>
 specifies a syntactic form as a list of elements, here &#X2018;<code class="verb">\</code>&#X2019;,
 &#X2018;<code class="verb">x</code>&#X2019;, &#X2018;<code class="verb">.</code>&#X2019;, and &#X2018;<code class="verb">t</code>&#X2019;, each of which is either a
 metavariable (the &#X2018;<code class="verb">x</code>&#X2019;), a nonterminal (the &#X2018;<code class="verb">t</code>&#X2019;), or a
 terminal 
-(<span style="font-family:monospace">\</span> <span style="font-family:monospace">.</span> <span style="font-family:monospace">(</span> <span style="font-family:monospace">)</span> <span style="font-family:monospace">{</span> <span style="font-family:monospace">}</span> <span style="font-family:monospace">/</span> <span style="font-family:monospace">--&gt;</span>). 
+(<span class="tt">\</span> <span class="tt">.</span> <span class="tt">(</span> <span class="tt">)</span> <span class="tt">{</span> <span class="tt">}</span> <span class="tt">/</span> <span class="tt">--&gt;</span>). 
 Within productions all elements must be whitespace-separated, so that
 the tool can deduce which are terminals. In the symbolic terms in
 the semantic rules below, however, whitespace is required only where necessary.
 A few terminals have to be quoted (with <code class="verb">''</code>) if they appear in a grammar, e.g. to
-use <span style="font-family:monospace">|</span> as an object-language token, as they are part of the Ott syntax, but they
+use <span class="tt">|</span> as an object-language token, as they are part of the Ott syntax, but they
 do not have to be quoted at usage points. 
 (If one accidentally omits inter-token whitespace in the grammar, the
 output of Ott can be surprising. This is best diagnosed by looking at
 the colourised ASCII or LaTeX output from Ott.)</p><p>Metavariables and nonterminals can be formed from the specified
 metavariable and nonterminal roots by appending a suffix, e.g.&#XA0;the
-nonterminal <code class="verb">t'</code> in the <code class="verb">App</code> and <code class="verb">Tsub</code> productions. </p><p>Between the <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>&#X2019;s is an optional meta flag <span style="color:#A51815"><span style="font-family:monospace">M</span></span> or <span style="color:#A51815"><span style="font-family:monospace">S</span></span>. Non-meta
+nonterminal <code class="verb">t'</code> in the <code class="verb">App</code> and <code class="verb">Tsub</code> productions. </p><p>Between the <span style="color:#007FFF"><span class="tt">::</span></span>&#X2019;s is an optional meta flag <span style="color:#A51815"><span class="tt">M</span></span> or <span style="color:#A51815"><span class="tt">S</span></span>. Non-meta
 productions give rise to clauses of datatype definitions in the
 Isabelle/Coq/HOL output, whereas meta productions do not. Later, we
 will see how the user can specify how meta syntax should be translated
-away when generating proof assistant output. The two flags <span style="color:#A51815"><span style="font-family:monospace">M</span></span>
-and <span style="color:#A51815"><span style="font-family:monospace">S</span></span> are identical except that productions with the latter are 
-admitted when parsing example concrete terms; the <span style="color:#A51815"><span style="font-family:monospace">S</span></span> tag is thus
+away when generating proof assistant output. The two flags <span style="color:#A51815"><span class="tt">M</span></span>
+and <span style="color:#A51815"><span class="tt">S</span></span> are identical except that productions with the latter are 
+admitted when parsing example concrete terms; the <span style="color:#A51815"><span class="tt">S</span></span> tag is thus
 appropriate for lightweight syntactic sugar, such as productions for
-parentheses. One can also use another flag, e.g.&#XA0;<span style="color:#A51815"><span style="font-family:monospace">X</span></span>, along with the command-line option <code class="verb">-tex_suppress_category</code>, to suppress 
+parentheses. One can also use another flag, e.g.&#XA0;<span style="color:#A51815"><span class="tt">X</span></span>, along with the command-line option <code class="verb">-tex_suppress_category</code>, to suppress 
 productions in the generated LaTeX.</p><p>Each production has a production name (e.g.&#XA0;<code class="verb">t_Lam</code>), composed of
 the rule name prefix (here&#XA0;<code class="verb">t_</code>) and the production name kernel
-that follows the <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>&#X2019;s (here&#XA0;<code class="verb">Lam</code>). The production name is
+that follows the <span style="color:#007FFF"><span class="tt">::</span></span>&#X2019;s (here&#XA0;<code class="verb">Lam</code>). The production name is
 used as a constructor name in the generated Isabelle/Coq/HOL. </p><p>The tool supports arbitrary context-free grammars, extended with
-special constructs for list forms (c.f.&#XA0;&#XA7;<a href="#a61">12</a>). </p><p>Following the <span style="color:#A51815"><span style="font-family:monospace">grammar</span></span> in this example is a <span style="color:#A51815"><span style="font-family:monospace">subrule</span></span>
+special constructs for list forms (c.f.&#XA0;&#XA7;<a href="#a61">12</a>). </p><p>Following the <span style="color:#A51815"><span class="tt">grammar</span></span> in this example is a <span style="color:#A51815"><span class="tt">subrule</span></span>
 declaration
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">subrules</span></span>
-    v <span style="color:#007FFF"><span style="font-family:monospace">&lt;::</span></span> t
+  <span style="color:#A51815"><span class="tt">subrules</span></span>
+    v <span style="color:#007FFF"><span class="tt">&lt;::</span></span> t
 </pre><p>
 declaring that the <code class="verb">v</code> grammar rule (of values) is a
 subgrammar of the <code class="verb">t</code> rule (of terms). The tool checks that
@@ -596,12 +605,12 @@ <h2 id="sec20" class="section">3&#X2003;A minimal Ott source file: the untyped C
 <code class="verb">v</code> nonterminals in the semantic rules will have instances of this
 predicate automatically inserted.</p><p>Finally, we give a collection of definitions of inductive relations.
 In this example there is just one family of definitions (of
-operational judgements), introduced by the <span style="color:#A51815"><span style="font-family:monospace">defns</span></span> <code class="verb">Jop</code>; it contains just one
+operational judgements), introduced by the <span style="color:#A51815"><span class="tt">defns</span></span> <code class="verb">Jop</code>; it contains just one
 definition of a relation, called <code class="verb">reduce</code>. 
-In general there may be many <span style="color:#A51815"><span style="font-family:monospace">defns</span></span> blocks, each of which introduces a
-mutually recursive collection of <span style="color:#A51815"><span style="font-family:monospace">defn</span></span>s. 
+In general there may be many <span style="color:#A51815"><span class="tt">defns</span></span> blocks, each of which introduces a
+mutually recursive collection of <span style="color:#A51815"><span class="tt">defn</span></span>s. 
 The relation definition
-<span style="color:#A51815"><span style="font-family:monospace">defn</span></span><code class="verb"> ...</code>
+<span style="color:#A51815"><span class="tt">defn</span></span><code class="verb"> ...</code>
 also includes a grammar production specifying how elements of the
 relation can be written and typeset, here
 </p><pre class="verbatim">  t1 --&gt; t2
@@ -616,7 +625,7 @@ <h2 id="sec20" class="section">3&#X2003;A minimal Ott source file: the untyped C
 conclusion, for example as below.
 </p><pre>
     t1 --&gt; t1&#X2019;
-<span style="color:#007FFF"><span style="font-family:monospace">    -------------- ::</span></span> ctx_app_arg
+<span style="color:#007FFF"><span class="tt">    -------------- ::</span></span> ctx_app_arg
     v t1 --&gt; v t1&#X2019;
 </pre><p>
 The conclusion must be a symbolic term of the form of the judgement being
@@ -624,7 +633,7 @@ <h2 id="sec20" class="section">3&#X2003;A minimal Ott source file: the untyped C
 In simple cases (as here) the premises can be symbolic terms of the
 form of any of the defined judgements. More generally (see
 &#XA7;<a href="#a53">6</a>) they can be symbolic terms of a user-defined
-<span style="color:#A51815"><span style="font-family:monospace">formula</span></span> grammar, or in-line embedded prover code. 
+<span style="color:#A51815"><span class="tt">formula</span></span> grammar, or in-line embedded prover code. 
 Each rule
 has a name, composed of a definition family prefix
 (here empty), a definition prefix (here also empty) and a kernel
@@ -632,17 +641,17 @@ <h2 id="sec20" class="section">3&#X2003;A minimal Ott source file: the untyped C
 </p><p>The symbolic terms in semantic rules are parsed with a scannerless parser, built
 using parser combinators over character-list inputs. The parser
 searches for all parses of the input. If none are found, the ASCII
-and TeX output are annotated <span style="font-family:monospace">no parses</span>, with a copy of the
-input with <span style="font-family:monospace">***</span> inserted at the point where the last token was
+and TeX output are annotated <span class="tt">no parses</span>, with a copy of the
+input with <span class="tt">***</span> inserted at the point where the last token was
 read. This is often at the point of the error (though if, for
 example, a putative dot form is read but the two element lists cannot
 be anti-unified, it will be after the point of the error). 
 If multiple parses are found, the TeX output is annotated
-<span style="font-family:monospace">multiple parses</span> and the different parses are output to the
+<span class="tt">multiple parses</span> and the different parses are output to the
 console in detail during the Ott run. 
-If the option <span style="font-family:monospace">picky_multiple_parses</span> is set to
-<span style="font-family:monospace">true</span>, multiple parses are always reported. If it set to
-<span style="font-family:monospace">false</span>, a symbolic term is considered ambiguous only if two
+If the option <span class="tt">picky_multiple_parses</span> is set to
+<span class="tt">true</span>, multiple parses are always reported. If it set to
+<span class="tt">false</span>, a symbolic term is considered ambiguous only if two
 different parses compile to different strings (for a target).
 The parser combinators use memoization and continuation-passing to
 achieve reasonable performance on the small symbolic terms that are
@@ -653,9 +662,9 @@ <h2 id="sec20" class="section">3&#X2003;A minimal Ott source file: the untyped C
 production-name annotations in particular symbolic terms,
 e.g.&#XA0;the <code class="verb">:t_tsub:</code> in the <code class="verb">AppAbs</code> rule of the POPLmark
 example, 
-<span style="font-family:monospace">test7.ott</span>. There is currently no support for precedence
+<span class="tt">test7.ott</span>. There is currently no support for precedence
 or associativity.</p><p>This file is included in the distribution as
-<span style="font-family:monospace">tests/test10.0.ott</span>. It can be processed by executing
+<span class="tt">tests/test10.0.ott</span>. It can be processed by executing
 </p><pre>
    bin/ott -i tests/test10.0.ott
 </pre><p>
@@ -668,20 +677,20 @@ <h2 id="sec20" class="section">3&#X2003;A minimal Ott source file: the untyped C
 with metavariables in red, nonterminals
 in yellow, terminals in green, and object variables in white. 
 The colourisation uses vt220 control codes; if they do not work on
-your screen add <span style="font-family:monospace">-colour false</span> to the middle of the command
+your screen add <span class="tt">-colour false</span> to the middle of the command
 line. To suppress the echo of the definition, add
-<span style="font-family:monospace">-show_sort false</span> and <span style="font-family:monospace">-show_defns false</span>.</p>
+<span class="tt">-show_sort false</span> and <span class="tt">-show_defns false</span>.</p>
 <!--TOC subsection id="sec21" Index variables-->
 <h3 id="sec21" class="subsection">3.1&#X2003;Index variables</h3><!--SEC END --><p>
-In addition to the <span style="color:#A51815"><span style="font-family:monospace">metavar</span></span> declarations above, the user can declare any number of distinguished <em>index</em>
+In addition to the <span style="color:#A51815"><span class="tt">metavar</span></span> declarations above, the user can declare any number of distinguished <em>index</em>
 metavariables, e.g. by:
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">indexvar</span></span> index<span style="color:#007FFF"><span style="font-family:monospace">,</span></span> i<span style="color:#007FFF"><span style="font-family:monospace">,</span></span> j<span style="color:#007FFF"><span style="font-family:monospace">,</span></span> n<span style="color:#007FFF"><span style="font-family:monospace">,</span></span> m <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> num <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">coq</span></span> nat <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">hol</span></span> num <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> 
+  <span style="color:#A51815"><span class="tt">indexvar</span></span> index<span style="color:#007FFF"><span class="tt">,</span></span> i<span style="color:#007FFF"><span class="tt">,</span></span> j<span style="color:#007FFF"><span class="tt">,</span></span> n<span style="color:#007FFF"><span class="tt">,</span></span> m <span style="color:#007FFF"><span class="tt">::=</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> num <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">coq</span></span> nat <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">hol</span></span> num <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> 
 </pre><p>
 Given such a declaration, <code class="verb">index</code>, <code class="verb">i</code>, <code class="verb">j</code>, <code class="verb">n</code>
 and <code class="verb">m</code> can be used in suffixes, e.g.&#XA0;in the production
 </p><pre>
-   <span style="color:#007FFF"><span style="font-family:monospace">|</span></span>  ( t1 , <span style="color:#007FFF"><span style="font-family:monospace">....</span></span> , tn )           <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Tuple
+   <span style="color:#007FFF"><span class="tt">|</span></span>  ( t1 , <span style="color:#007FFF"><span class="tt">....</span></span> , tn )           <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> Tuple
 </pre><p>
 There is a fixed ad-hoc language of suffixes, including numbers, primes, and index variables (see &#XA7;<a href="#a17">23</a>).
 Index metavariables cannot themselves be suffixed.</p>
@@ -691,7 +700,7 @@ <h2 id="sec22" class="section">4&#X2003;Generating LaTeX</h2><!--SEC END --><p><
 </p><pre>
    bin/ott -i tests/test10.0.ott -o out.tex 
 </pre><p>
-to produce a LaTeX file <span style="font-family:monospace">out.tex</span>. One often needs to
+to produce a LaTeX file <span class="tt">out.tex</span>. One often needs to
 fine-tune the default typesetting, as illustrated in 
 Figure&#XA0;<a href="#a46">2</a> (the Ott source) and Figure&#XA0;<a href="#a49">3</a>
 (the resulting LaTeX). 
@@ -701,106 +710,106 @@ <h2 id="sec22" class="section">4&#X2003;Generating LaTeX</h2><!--SEC END --><p><
 <span class="lrbox framebox"><div class="minipage"><span style="font-size:small">
 </span><pre><span style="font-size:small">
 % minimal + latex + comments
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">metavar</span></span></span><span style="font-size:small"> termvar</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">,</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">   
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">tex</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small">mathit</span><span style="font-size:small"><span style="font-family:monospace">{</span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span></span><span style="font-size:small">termvar</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span></span><span style="font-size:small"><span style="font-family:monospace">}</span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">metavar</span></span></span><span style="font-size:small"> termvar</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">,</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">   
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">tex</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small">mathit</span><span style="font-size:small"><span class="tt">{</span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">[[</span></span></span><span style="font-size:small">termvar</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">]]</span></span></span><span style="font-size:small"><span class="tt">}</span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">grammar</span></span></span><span style="font-size:small">
-t </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X2019;t_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">                               </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> term    </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> x            </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Var                   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> variable</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Lam                   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> lambda  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> t t&#X2019;         </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> App                   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> app     </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> ( t )        </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">S</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Paren      
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">{</span></span><span style="font-size:small"> t / x </span><span style="font-size:small"><span style="font-family:monospace">}</span></span><span style="font-size:small"> t&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">M</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Tsub  
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">grammar</span></span></span><span style="font-size:small">
+t </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X2019;t_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">                               </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> term    </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> x            </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Var                   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> variable</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Lam                   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> lambda  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> t t&#X2019;         </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> App                   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> app     </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> ( t )        </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">S</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Paren      
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">{</span></span><span style="font-size:small"> t / x </span><span style="font-size:small"><span class="tt">}</span></span><span style="font-size:small"> t&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">M</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Tsub  
 
-v </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X2019;v_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">                               </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> value   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Lam                   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> lambda  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
+v </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X2019;v_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">                               </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> value   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Lam                   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> lambda  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">terminals</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X2019;terminals_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small">            </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> lambda  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">tex</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small">lambda </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> --&gt;          </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> red     </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">tex</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small">longrightarrow </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">terminals</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X2019;terminals_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small">            </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> lambda  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">tex</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small">lambda </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> --&gt;          </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> red     </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">tex</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small">longrightarrow </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">subrules</span></span></span><span style="font-size:small">
-  v </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;::</span></span></span><span style="font-size:small"> t
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">subrules</span></span></span><span style="font-size:small">
+  v </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;::</span></span></span><span style="font-size:small"> t
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">defns</span></span></span><span style="font-size:small">
-Jop </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">defns</span></span></span><span style="font-size:small">
+Jop </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">
 
- </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">defn</span></span></span><span style="font-size:small">
- t1 --&gt; t2 </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">reduce</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">&#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> $</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span></span><span style="font-size:small">t1</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span></span><span style="font-size:small">$ reduces to $</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span></span><span style="font-size:small">t2</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span></span><span style="font-size:small">$</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">by</span></span></span><span style="font-size:small">
+ </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">defn</span></span></span><span style="font-size:small">
+ t1 --&gt; t2 </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">reduce</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">&#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> $</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">[[</span></span></span><span style="font-size:small">t1</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">]]</span></span></span><span style="font-size:small">$ reduces to $</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">[[</span></span></span><span style="font-size:small">t2</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">]]</span></span></span><span style="font-size:small">$</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">by</span></span></span><span style="font-size:small">
 
 
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">    --------------------------</span></span></span><span style="font-size:small">  :: ax_app
-    (</span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small">x.t12) v2 --&gt;  </span><span style="font-size:small"><span style="font-family:monospace">{</span></span><span style="font-size:small">v2/x</span><span style="font-size:small"><span style="font-family:monospace">}</span></span><span style="font-size:small">t12
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">    --------------------------</span></span></span><span style="font-size:small">  :: ax_app
+    (</span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small">x.t12) v2 --&gt;  </span><span style="font-size:small"><span class="tt">{</span></span><span style="font-size:small">v2/x</span><span style="font-size:small"><span class="tt">}</span></span><span style="font-size:small">t12
 
     t1 --&gt; t1&#X2019;
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_fun
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_fun
     t1 t --&gt; t1&#X2019; t
 
     t1 --&gt; t1&#X2019;
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_arg
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_arg
     v t1 --&gt; v t1&#X2019;
 </span></pre><span style="font-size:small">
 
 </span></div></span>
-<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 2: Source: <span style="font-family:monospace">test10.2.ott</span><a id="a46"></a></td></tr>
+<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 2: Source: <span class="tt">test10.2.ott</span><a id="a46"></a></td></tr>
 </table></div>
 <div class="center"><hr class="floatrule"></div></blockquote><blockquote class="figure"><div class="center"><hr class="floatrule"></div>
 
-<img src="top2001.png"><div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 3: Generated LaTeX: <span style="font-family:monospace">test10.2.tex</span><a id="a49"></a></td></tr>
+<img src="top2001.png"><div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 3: Generated LaTeX: <span class="tt">test10.2.tex</span><a id="a49"></a></td></tr>
 </table></div>
 <div class="center"><hr class="floatrule"></div></blockquote><p>
 The source file has three additions to the previous file. 
-Firstly, the <span style="color:#A51815"><span style="font-family:monospace">metavar</span></span> declaration is annotated with a
+Firstly, the <span style="color:#A51815"><span class="tt">metavar</span></span> declaration is annotated with a
 specification of how metavariables should be translated to LaTeX:
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">metavar</span></span> termvar<span style="color:#007FFF"><span style="font-family:monospace">,</span></span> x <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>   
-    <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="font-family:monospace">\</span>mathit<span style="font-family:monospace">{</span><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>termvar<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span><span style="font-family:monospace">}</span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+  <span style="color:#A51815"><span class="tt">metavar</span></span> termvar<span style="color:#007FFF"><span class="tt">,</span></span> x <span style="color:#007FFF"><span class="tt">::=</span></span>   
+    <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span class="tt">\</span>mathit<span class="tt">{</span><span style="color:#007FFF"><span class="tt">[[</span></span>termvar<span style="color:#007FFF"><span class="tt">]]</span></span><span class="tt">}</span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>
-Inside the <span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#A51815">tex</span></span><span style="font-family:monospace"> </span>&#X2026;<span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span>
+Inside the <span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"> </span><span class="tt"><span style="color:#A51815">tex</span></span><span class="tt"> </span>&#X2026;<span class="tt"> </span><span class="tt"><span style="color:#007FFF">}</span></span><span class="tt"><span style="color:#007FFF">}</span></span>
 is some LaTeX code
-<span style="font-family:monospace">\</span><span style="font-family:monospace">mathit</span><span style="font-family:monospace">{</span><span style="font-family:monospace"><span style="color:#007FFF">$[[</span></span><span style="font-family:monospace">termvar</span><span style="font-family:monospace"><span style="color:#007FFF">]]$</span></span><span style="font-family:monospace">}</span> 
-giving the translation of a <span style="font-family:monospace">termvar</span> or <span style="font-family:monospace">x</span>. Here they
+<span class="tt">\</span><span class="tt">mathit</span><span class="tt">{</span><span class="tt"><span style="color:#007FFF">$[[</span></span><span class="tt">termvar</span><span class="tt"><span style="color:#007FFF">]]$</span></span><span class="tt">}</span> 
+giving the translation of a <span class="tt">termvar</span> or <span class="tt">x</span>. Here they
 are typeset in math italic (which in fact is also the default).
 Within the translation, the metavariable itself can be mentioned
-inside double square brackets <span style="font-family:monospace"><span style="color:#007FFF">[[</span></span><span style="font-family:monospace"> </span>&#X2026;<span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#007FFF">]]</span></span>.</p><p>Secondly, there is a grammar for a distinguished nonterminal root
-<span style="color:#A51815"><span style="font-family:monospace">terminals</span></span>, with a 
-<span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#A51815">tex</span></span><span style="font-family:monospace"> </span>&#X2026;<span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span>
+inside double square brackets <span class="tt"><span style="color:#007FFF">[[</span></span><span class="tt"> </span>&#X2026;<span class="tt"> </span><span class="tt"><span style="color:#007FFF">]]</span></span>.</p><p>Secondly, there is a grammar for a distinguished nonterminal root
+<span style="color:#A51815"><span class="tt">terminals</span></span>, with a 
+<span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"> </span><span class="tt"><span style="color:#A51815">tex</span></span><span class="tt"> </span>&#X2026;<span class="tt"> </span><span class="tt"><span style="color:#007FFF">}</span></span><span class="tt"><span style="color:#007FFF">}</span></span>
 translation for each, overriding the default typesetting of some
 terminals. Note that the other terminals 
-(<span style="font-family:monospace">.</span> <span style="font-family:monospace">(</span> <span style="font-family:monospace">)</span> <span style="font-family:monospace">{</span> <span style="font-family:monospace">}</span> <span style="font-family:monospace">/</span>)
+(<span class="tt">.</span> <span class="tt">(</span> <span class="tt">)</span> <span class="tt">{</span> <span class="tt">}</span> <span class="tt">/</span>)
 are still given their default typesetting.
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">terminals</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;terminals_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">\</span>            <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> lambda  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="font-family:monospace">\</span>lambda <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> --&gt;          <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> red     <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="font-family:monospace">\</span>longrightarrow <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+  <span style="color:#A51815"><span class="tt">terminals</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;terminals_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>
+    <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">\</span>            <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> lambda  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span class="tt">\</span>lambda <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+    <span style="color:#007FFF"><span class="tt">|</span></span> --&gt;          <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> red     <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span class="tt">\</span>longrightarrow <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>
-Thirdly, the file has <span style="color:#A51815"><span style="font-family:monospace">com</span></span> comments, including
+Thirdly, the file has <span style="color:#A51815"><span class="tt">com</span></span> comments, including
 the 
-<span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#A51815">com</span></span><span style="font-family:monospace"> term </span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span>
+<span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"> </span><span class="tt"><span style="color:#A51815">com</span></span><span class="tt"> term </span><span class="tt"><span style="color:#007FFF">}</span></span><span class="tt"><span style="color:#007FFF">}</span></span>
 attached to a grammar rule, 
 the 
-<span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#A51815">com</span></span><span style="font-family:monospace"> variable</span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span>
+<span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"> </span><span class="tt"><span style="color:#A51815">com</span></span><span class="tt"> variable</span><span class="tt"><span style="color:#007FFF">}</span></span><span class="tt"><span style="color:#007FFF">}</span></span>
 attached to a production, and the
-<span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#A51815">com</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#007FFF">[[</span></span><span style="font-family:monospace">t1</span><span style="font-family:monospace"><span style="color:#007FFF">]]</span></span><span style="font-family:monospace"> reduces to </span><span style="font-family:monospace"><span style="color:#007FFF">[[</span></span><span style="font-family:monospace">t2</span><span style="font-family:monospace"><span style="color:#007FFF">]]</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span>
+<span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"> </span><span class="tt"><span style="color:#A51815">com</span></span><span class="tt"> </span><span class="tt"><span style="color:#007FFF">[[</span></span><span class="tt">t1</span><span class="tt"><span style="color:#007FFF">]]</span></span><span class="tt"> reduces to </span><span class="tt"><span style="color:#007FFF">[[</span></span><span class="tt">t2</span><span class="tt"><span style="color:#007FFF">]]</span></span><span class="tt"><span style="color:#007FFF">}</span></span><span class="tt"><span style="color:#007FFF">}</span></span>
 attached to a semantic relation. These appear in the LaTeX output
 as shown in Figure&#XA0;<a href="#a49">3</a>.</p>
 <!--TOC subsection id="sec23" Specifying LaTeX for productions-->
 <h3 id="sec23" class="subsection">4.1&#X2003;Specifying LaTeX for productions</h3><!--SEC END --><p>
-One can also specify <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> translations for productions, overriding the default
+One can also specify <span style="color:#A51815"><span class="tt">tex</span></span> translations for productions, overriding the default
 LaTeX typesetting, e.g.&#XA0;as in this example of
 a type abstraction production.
 </p><pre>
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span>  X &lt;: T . t   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> TLam   <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="font-family:monospace">\</span>Lambda <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>X<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>&lt;:<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>T<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>. <span style="font-family:monospace">\</span>, <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+    <span style="color:#007FFF"><span class="tt">|</span></span>  X &lt;: T . t   <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> TLam   <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span class="tt">\</span>Lambda <span style="color:#007FFF"><span class="tt">[[</span></span>X<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>&lt;:<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>T<span style="color:#007FFF"><span class="tt">]]</span></span>. <span class="tt">\</span>, <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>
 These <em>homomorphisms</em>, or <em>homs</em><sup><a id="text1" href="#note1">1</a></sup>, can refer to the metavariables and
-nonterminals that occur in the production, e.g.&#XA0;the <span style="font-family:monospace"><span style="color:#007FFF">[[</span></span><span style="font-family:monospace">X</span><span style="font-family:monospace"><span style="color:#007FFF">]]</span></span>,
-<span style="font-family:monospace"><span style="color:#007FFF">[[</span></span><span style="font-family:monospace">T</span><span style="font-family:monospace"><span style="color:#007FFF">]]</span></span>, and <span style="font-family:monospace"><span style="color:#007FFF">[[</span></span><span style="font-family:monospace">t</span><span style="font-family:monospace"><span style="color:#007FFF">]]</span></span> in the <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> hom above,
+nonterminals that occur in the production, e.g.&#XA0;the <span class="tt"><span style="color:#007FFF">[[</span></span><span class="tt">X</span><span class="tt"><span style="color:#007FFF">]]</span></span>,
+<span class="tt"><span style="color:#007FFF">[[</span></span><span class="tt">T</span><span class="tt"><span style="color:#007FFF">]]</span></span>, and <span class="tt"><span style="color:#007FFF">[[</span></span><span class="tt">t</span><span class="tt"><span style="color:#007FFF">]]</span></span> in the <span style="color:#A51815"><span class="tt">tex</span></span> hom above,
 interleaved with arbitrary strings and with typeset elements of the
-<span style="color:#A51815"><span style="font-family:monospace">terminals</span></span> grammar, e.g.&#XA0;the <span style="font-family:monospace"><span style="color:#007FFF">[[</span></span><span style="font-family:monospace">&lt;:</span><span style="font-family:monospace"><span style="color:#007FFF">]]</span></span>.</p><p>Homomorphisms are applied recursively down the structure of symbolic
+<span style="color:#A51815"><span class="tt">terminals</span></span> grammar, e.g.&#XA0;the <span class="tt"><span style="color:#007FFF">[[</span></span><span class="tt">&lt;:</span><span class="tt"><span style="color:#007FFF">]]</span></span>.</p><p>Homomorphisms are applied recursively down the structure of symbolic
 terms. For example, an F<sub>&lt;:</sub> term
 </p><pre class="verbatim">  (\X&lt;:T11.t12) [T2]
 </pre><p>
-would be LaTeX-pretty-printed, using the <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> clause above, as
+would be LaTeX-pretty-printed, using the <span style="color:#A51815"><span class="tt">tex</span></span> clause above, as
 </p><pre class="verbatim">( \, \Lambda  \mathit{X} &lt;: \mathit{T_{\mathrm{11}}} . \, \mathit{t_{\mathrm{12}}} \, )
  \, \, [ \, \mathit{T_{\mathrm{2}}} \, ]
 </pre><p>
@@ -828,19 +837,19 @@ <h3 id="sec23" class="subsection">4.1&#X2003;Specifying LaTeX for productions</h
 with reasonable default fonts and making use of the <code class="verb">terminals</code> grammar where appropriate.</p>
 <!--TOC subsection id="sec24" Specifying LaTeX for grammar rules-->
 <h3 id="sec24" class="subsection">4.2&#X2003;Specifying LaTeX for grammar rules</h3><!--SEC END --><p>
-Grammar rules can include a <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> hom specifying how all the
+Grammar rules can include a <span style="color:#A51815"><span class="tt">tex</span></span> hom specifying how all the
 nonterminal roots should be typeset, e.g.
 </p><pre>
-  type<span style="color:#007FFF"><span style="font-family:monospace">,</span></span> t<span style="color:#007FFF"><span style="font-family:monospace">,</span></span> s <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Typ_ <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="font-family:monospace">\</span>mathsf<span style="font-family:monospace">{</span><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>type<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span><span style="font-family:monospace">}</span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> 
-        <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> unit                  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> unit   
-        <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> type * type&#X2019;          <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> pair   
-        <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> type -&gt; type&#X2019;         <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> fun    
-</pre><p>Alternatively, the individual nonterminal roots can have <span style="color:#A51815"><span style="font-family:monospace">tex</span></span>
+  type<span style="color:#007FFF"><span class="tt">,</span></span> t<span style="color:#007FFF"><span class="tt">,</span></span> s <span style="color:#007FFF"><span class="tt">::</span></span> Typ_ <span style="color:#007FFF"><span class="tt">::=</span></span>  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span class="tt">\</span>mathsf<span class="tt">{</span><span style="color:#007FFF"><span class="tt">[[</span></span>type<span style="color:#007FFF"><span class="tt">]]</span></span><span class="tt">}</span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> 
+        <span style="color:#007FFF"><span class="tt">|</span></span> unit                  <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> unit   
+        <span style="color:#007FFF"><span class="tt">|</span></span> type * type&#X2019;          <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> pair   
+        <span style="color:#007FFF"><span class="tt">|</span></span> type -&gt; type&#X2019;         <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> func   
+</pre><p>Alternatively, the individual nonterminal roots can have <span style="color:#A51815"><span class="tt">tex</span></span>
 homs specifying how they should be typeset:
 </p><pre>
-  G <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="font-family:monospace">\</span>Gamma <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">,</span></span> D <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="font-family:monospace">\</span>Delta <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;G_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span> 
-        <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> empty                 <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> empty       
-        <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> G , x : T             <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> term        
+  G <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span class="tt">\</span>Gamma <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">,</span></span> D <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span class="tt">\</span>Delta <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;G_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span> 
+        <span style="color:#007FFF"><span class="tt">|</span></span> empty                 <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> empty       
+        <span style="color:#007FFF"><span class="tt">|</span></span> G , x : T             <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> term        
 </pre><p>
 permitting the user to write <code class="verb">G'</code>, <code class="verb">D12</code> etc.&#XA0;in symbolic
 terms, to be typeset as 
@@ -869,24 +878,24 @@ <h3 id="sec25" class="subsection">4.3&#X2003;Using the LaTeX code</h3><!--SEC EN
 document, the <code class="verb">ott</code> prefix can be replaced using the
 <code class="verb">-tex_name_prefix</code> command-line argument. </p><p>The generated LaTeX is factored through some common style macros, 
 e.g.&#XA0;to typeset a comment, a production, and a grammar. If necessary
-these can be redefined in an <span style="color:#A51815"><span style="font-family:monospace">embed</span></span> block (see Section&#XA0;<a href="#a60">8.1</a>). 
+these can be redefined in an <span style="color:#A51815"><span class="tt">embed</span></span> block (see Section&#XA0;<a href="#a60">8.1</a>). 
 For example, the file <code class="verb">tests/squishtex.ott</code>
 </p><pre>
-<span style="color:#A51815"><span style="font-family:monospace">embed</span></span> 
- <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> tex-preamble
-<span style="font-family:monospace">\</span>renewcommand<span style="font-family:monospace">{</span><span style="font-family:monospace">\</span><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">TEX_NAME_PREFIX</span></span><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>grammartabular<span style="font-family:monospace">}</span>[1]
-  <span style="font-family:monospace">{</span><span style="font-family:monospace">\</span>begin<span style="font-family:monospace">{</span>minipage<span style="font-family:monospace">}</span><span style="font-family:monospace">{</span><span style="font-family:monospace">\</span>columnwidth<span style="font-family:monospace">}</span><span style="font-family:monospace">\</span>begin<span style="font-family:monospace">{</span>tabular<span style="font-family:monospace">}</span><span style="font-family:monospace">{</span>ll<span style="font-family:monospace">}</span>#1<span style="font-family:monospace">\</span>end<span style="font-family:monospace">{</span>tabular<span style="font-family:monospace">}</span><span style="font-family:monospace">\</span>end<span style="font-family:monospace">{</span>minipage<span style="font-family:monospace">}</span> <span style="font-family:monospace">}</span>
-<span style="font-family:monospace">\</span>renewcommand<span style="font-family:monospace">{</span><span style="font-family:monospace">\</span><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">TEX_NAME_PREFIX</span></span><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>rulehead<span style="font-family:monospace">}</span>[3]
-  <span style="font-family:monospace">{</span>$#1$  $#2$ &amp; $#3$<span style="font-family:monospace">}</span>
-<span style="font-family:monospace">\</span>renewcommand<span style="font-family:monospace">{</span><span style="font-family:monospace">\</span><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">TEX_NAME_PREFIX</span></span><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>prodline<span style="font-family:monospace">}</span>[6]
-  <span style="font-family:monospace">{</span> <span style="font-family:monospace">\</span>quad $#1$ <span style="font-family:monospace">\</span> $#2$ &amp; <span style="font-family:monospace">\</span>quad $#3 #4$  $#5$  $#6$<span style="font-family:monospace">}</span>
-<span style="font-family:monospace">\</span>renewcommand<span style="font-family:monospace">{</span><span style="font-family:monospace">\</span><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">TEX_NAME_PREFIX</span></span><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>interrule<span style="font-family:monospace">}</span>
-  <span style="font-family:monospace">{</span><span style="font-family:monospace">\</span><span style="font-family:monospace">\</span>[2.0mm]<span style="font-family:monospace">}</span>
- <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+<span style="color:#A51815"><span class="tt">embed</span></span> 
+ <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> tex-preamble
+<span class="tt">\</span>renewcommand<span class="tt">{</span><span class="tt">\</span><span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">TEX_NAME_PREFIX</span></span><span style="color:#007FFF"><span class="tt">]]</span></span>grammartabular<span class="tt">}</span>[1]
+  <span class="tt">{</span><span class="tt">\</span>begin<span class="tt">{</span>minipage<span class="tt">}</span><span class="tt">{</span><span class="tt">\</span>columnwidth<span class="tt">}</span><span class="tt">\</span>begin<span class="tt">{</span>tabular<span class="tt">}</span><span class="tt">{</span>ll<span class="tt">}</span>#1<span class="tt">\</span>end<span class="tt">{</span>tabular<span class="tt">}</span><span class="tt">\</span>end<span class="tt">{</span>minipage<span class="tt">}</span> <span class="tt">}</span>
+<span class="tt">\</span>renewcommand<span class="tt">{</span><span class="tt">\</span><span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">TEX_NAME_PREFIX</span></span><span style="color:#007FFF"><span class="tt">]]</span></span>rulehead<span class="tt">}</span>[3]
+  <span class="tt">{</span>$#1$  $#2$ &amp; $#3$<span class="tt">}</span>
+<span class="tt">\</span>renewcommand<span class="tt">{</span><span class="tt">\</span><span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">TEX_NAME_PREFIX</span></span><span style="color:#007FFF"><span class="tt">]]</span></span>prodline<span class="tt">}</span>[6]
+  <span class="tt">{</span> <span class="tt">\</span>quad $#1$ <span class="tt">\</span> $#2$ &amp; <span class="tt">\</span>quad $#3 #4$  $#5$  $#6$<span class="tt">}</span>
+<span class="tt">\</span>renewcommand<span class="tt">{</span><span class="tt">\</span><span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">TEX_NAME_PREFIX</span></span><span style="color:#007FFF"><span class="tt">]]</span></span>interrule<span class="tt">}</span>
+  <span class="tt">{</span><span class="tt">\</span><span class="tt">\</span>[2.0mm]<span class="tt">}</span>
+ <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>
 
 defines a more compact style for grammars. Note that the
-<span style="font-family:monospace"><span style="color:#007FFF">[[</span></span><span style="font-family:monospace"><span style="color:#A51815">TEX_NAME_PREFIX</span></span><span style="font-family:monospace"><span style="color:#007FFF">]]</span></span> is replaced by whatever prefix is in force,
+<span class="tt"><span style="color:#007FFF">[[</span></span><span class="tt"><span style="color:#A51815">TEX_NAME_PREFIX</span></span><span class="tt"><span style="color:#007FFF">]]</span></span> is replaced by whatever prefix is in force,
 so such style files can be reused in different contexts.</p><p>A more sophisticated LaTeX package <code class="verb">ottlayout.sty</code>, providing fine control of how
 inference rules and grammars should be typeset, is contained in the
 <code class="verb">tex</code> directory of the distribution. It is described in the
@@ -899,68 +908,68 @@ <h2 id="sec26" class="section">5&#X2003;Generating proof assistant definitions</
 </p><pre>
    bin/ott  -i tests/test10.4.ott  -o out.v  -o out.thy  -o outScript.sml 
 </pre><p>
-generates Coq <span style="font-family:monospace">out.v</span>, Isabelle <span style="font-family:monospace">out.thy</span>, and HOL
-<span style="font-family:monospace">outScript.sml</span>, shown in Figures&#XA0;<a href="#a6">5</a>, <a href="#a5">6</a>, and <a href="#a40">7</a>.
+generates Coq <span class="tt">out.v</span>, Isabelle <span class="tt">out.thy</span>, and HOL
+<span class="tt">outScript.sml</span>, shown in Figures&#XA0;<a href="#a6">5</a>, <a href="#a5">6</a>, and <a href="#a40">7</a>.
 The additional data can be combined with the annotations for
 LaTeX of the previous section, but those are omitted here. 
 </p><blockquote class="figure"><div class="center"><hr class="floatrule"></div>
 <span class="lrbox framebox"><div class="minipage"><span style="font-size:small">
 </span><pre><span style="font-size:small">
 % minimal                    + binding + subst + coq/hol/isa
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">metavar</span></span></span><span style="font-size:small"> termvar</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">,</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">  
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">isa</span></span></span><span style="font-size:small"> string</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">coq</span></span></span><span style="font-size:small"> nat</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">hol</span></span></span><span style="font-size:small"> string</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">coq-equality</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">metavar</span></span></span><span style="font-size:small"> termvar</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">,</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">  
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">isa</span></span></span><span style="font-size:small"> string</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">coq</span></span></span><span style="font-size:small"> nat</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">hol</span></span></span><span style="font-size:small"> string</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">coq-equality</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">grammar</span></span></span><span style="font-size:small">
-t </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X2019;t_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">                               
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> x            </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Var                  
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Lam     </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">(+</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">bind</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">in</span></span></span><span style="font-size:small"> t </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">+)</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> t t&#X2019;         </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> App                  
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> ( t )        </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">S</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Paren   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">icho</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span></span><span style="font-size:small">t</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> 
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">{</span></span><span style="font-size:small"> t / x </span><span style="font-size:small"><span style="font-family:monospace">}</span></span><span style="font-size:small"> t&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">M</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Tsub    </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">icho</span></span></span><span style="font-size:small"> (tsubst_t </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span></span><span style="font-size:small">t</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span></span><span style="font-size:small">x</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span></span><span style="font-size:small">t&#X2019;</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span></span><span style="font-size:small">)</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">grammar</span></span></span><span style="font-size:small">
+t </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X2019;t_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">                               
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> x            </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Var                  
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Lam     </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">(+</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">bind</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">in</span></span></span><span style="font-size:small"> t </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">+)</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> t t&#X2019;         </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> App                  
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> ( t )        </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">S</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Paren   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">icho</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">[[</span></span></span><span style="font-size:small">t</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">]]</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> 
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">{</span></span><span style="font-size:small"> t / x </span><span style="font-size:small"><span class="tt">}</span></span><span style="font-size:small"> t&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">M</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Tsub    </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">icho</span></span></span><span style="font-size:small"> (tsubst_t </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">[[</span></span></span><span style="font-size:small">t</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">]]</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">[[</span></span></span><span style="font-size:small">x</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">]]</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">[[</span></span></span><span style="font-size:small">t&#X2019;</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">]]</span></span></span><span style="font-size:small">)</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
 
-v </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X2019;v_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">                              
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Lam                
+v </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X2019;v_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">                              
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Lam                
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">subrules</span></span></span><span style="font-size:small">
-  v </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;::</span></span></span><span style="font-size:small"> t
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">subrules</span></span></span><span style="font-size:small">
+  v </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;::</span></span></span><span style="font-size:small"> t
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">substitutions</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">single</span></span></span><span style="font-size:small"> t x </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> tsubst 
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">substitutions</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">single</span></span></span><span style="font-size:small"> t x </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> tsubst 
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">defns</span></span></span><span style="font-size:small">
-Jop </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">defns</span></span></span><span style="font-size:small">
+Jop </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">
 
- </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">defn</span></span></span><span style="font-size:small">
- t1 --&gt; t2 </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">reduce</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">&#X201D;  </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">by</span></span></span><span style="font-size:small">
+ </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">defn</span></span></span><span style="font-size:small">
+ t1 --&gt; t2 </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">reduce</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">&#X201D;  </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">by</span></span></span><span style="font-size:small">
 
 
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">    --------------------------</span></span></span><span style="font-size:small">  :: ax_app
-    (</span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small">x.t12) v2 --&gt;  </span><span style="font-size:small"><span style="font-family:monospace">{</span></span><span style="font-size:small">v2/x</span><span style="font-size:small"><span style="font-family:monospace">}</span></span><span style="font-size:small">t12
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">    --------------------------</span></span></span><span style="font-size:small">  :: ax_app
+    (</span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small">x.t12) v2 --&gt;  </span><span style="font-size:small"><span class="tt">{</span></span><span style="font-size:small">v2/x</span><span style="font-size:small"><span class="tt">}</span></span><span style="font-size:small">t12
 
     t1 --&gt; t1&#X2019;
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_fun
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_fun
     t1 t --&gt; t1&#X2019; t
 
     t1 --&gt; t1&#X2019;
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_arg
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_arg
     v t1 --&gt; v t1&#X2019;
 </span></pre><span style="font-size:small">
 
 </span></div></span>
-<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 4: Source: <span style="font-family:monospace">test10.4.ott</span><a id="a47"></a></td></tr>
+<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 4: Source: <span class="tt">test10.4.ott</span><a id="a47"></a></td></tr>
 </table></div>
 <div class="center"><hr class="floatrule"></div></blockquote><p>
 We add four things.
 First, we specify proof assistant types to represent object-language
-variables &#X2014; in this example, choosing the <span style="font-family:monospace">string</span> type of
-Isabelle and HOL, and the <span style="font-family:monospace">nat</span> type for Coq:
+variables &#X2014; in this example, choosing the <span class="tt">string</span> type of
+Isabelle and HOL, and the <span class="tt">nat</span> type for Coq:
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">metavar</span></span> termvar<span style="color:#007FFF"><span style="font-family:monospace">,</span></span> x <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>  
-  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> string<span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">coq</span></span> nat<span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">hol</span></span> string<span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">coq-equality</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+  <span style="color:#A51815"><span class="tt">metavar</span></span> termvar<span style="color:#007FFF"><span class="tt">,</span></span> x <span style="color:#007FFF"><span class="tt">::=</span></span>  
+  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> string<span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">coq</span></span> nat<span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">hol</span></span> string<span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">coq-equality</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>
-For Coq output, one can specify <code class="verb">{{ coq-equality</code> <span style="font-style:italic">proof-script</span> <code class="verb">}}</code>
+For Coq output, one can specify <code class="verb">{{ coq-equality</code> <span class="it">proof-script</span> <code class="verb">}}</code>
 to build a decidable equality over the Coq representation type using
-the proof <span style="font-style:italic">proof-script</span>. If the script is omitted, as in this
+the proof <span class="it">proof-script</span>. If the script is omitted, as in this
 example, it defaults
 to 
 </p><pre class="verbatim">Proof.
@@ -974,44 +983,44 @@ <h2 id="sec26" class="section">5&#X2003;Generating proof assistant definitions</
 instance to avoid duplicate definitions of types already defined in an
 imported library. Any type homs are taken into account when
 the metavariable or nonterminal root is output as a type.</p><p>Second, we specify what the binding is in the object language, with
-the <span style="font-family:monospace"><span style="color:#007FFF">(+</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#A51815">bind</span></span><span style="font-family:monospace"> x </span><span style="font-family:monospace"><span style="color:#A51815">in</span></span><span style="font-family:monospace"> t </span><span style="font-family:monospace"><span style="color:#007FFF">+)</span></span>
-annotation on the <span style="font-family:monospace">Lam</span> production:
+the <span class="tt"><span style="color:#007FFF">(+</span></span><span class="tt"> </span><span class="tt"><span style="color:#A51815">bind</span></span><span class="tt"> x </span><span class="tt"><span style="color:#A51815">in</span></span><span class="tt"> t </span><span class="tt"><span style="color:#007FFF">+)</span></span>
+annotation on the <span class="tt">Lam</span> production:
 </p><pre>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">\</span> x . t      <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam     <span style="color:#007FFF"><span style="font-family:monospace">(+</span></span> <span style="color:#A51815"><span style="font-family:monospace">bind</span></span> x <span style="color:#A51815"><span style="font-family:monospace">in</span></span> t <span style="color:#007FFF"><span style="font-family:monospace">+)</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">\</span> x . t      <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> Lam     <span style="color:#007FFF"><span class="tt">(+</span></span> <span style="color:#A51815"><span class="tt">bind</span></span> x <span style="color:#A51815"><span class="tt">in</span></span> t <span style="color:#007FFF"><span class="tt">+)</span></span>
 </pre><p>
 Section&#XA0;<a href="#a62">9</a> describes the full language of binding specifications.</p><p>Third, we add a block
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">substitutions</span></span>
-    <span style="color:#A51815"><span style="font-family:monospace">single</span></span> t x <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> tsubst 
+  <span style="color:#A51815"><span class="tt">substitutions</span></span>
+    <span style="color:#A51815"><span class="tt">single</span></span> t x <span style="color:#007FFF"><span class="tt">::</span></span> tsubst 
 </pre><p>
 to cause Ott to generate Coq/Isabelle/HOL definitions of a substitution
-function, with name root <span style="font-family:monospace">tsubst</span>, replacing metavariables <span style="font-family:monospace">x</span> by terms <span style="font-family:monospace">t</span>. This is for single
+function, with name root <span class="tt">tsubst</span>, replacing metavariables <span class="tt">x</span> by terms <span class="tt">t</span>. This is for single
 substitutions; multiple substitution functions (taking lists of
 substitutand/substitutee pairs) can also be generated with the keyword
-<span style="color:#A51815"><span style="font-family:monospace">multiple</span></span>. 
+<span style="color:#A51815"><span class="tt">multiple</span></span>. 
 Substitution functions are generated for all rules of the grammar for
 which they might be required &#X2014; here, just over <code class="verb">t</code>, with a
 function named <code class="verb">tsubst_t</code>.</p><p>Finally, we specify translations for the metaproductions:
 </p><pre>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> ( t )        <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">S</span></span><span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Paren   <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">icho</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> 
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">{</span> t / x <span style="font-family:monospace">}</span> t&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">M</span></span><span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Tsub    <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">icho</span></span> (tsubst_t <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>x<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>)<span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-</pre><p>
-These specify that <span style="font-family:monospace">(t)</span> should be translated into just the
-translation of <span style="font-family:monospace">t</span>, whereas 
-<span style="font-family:monospace">{</span><span style="font-family:monospace">t/x</span><span style="font-family:monospace">}</span><span style="font-family:monospace">t&#X2019;</span> should be translated into the
-proof-assistant application of <span style="font-family:monospace">tsubst_t</span> to the translations
-of <span style="font-family:monospace">t</span>, <span style="font-family:monospace">x</span>, and <span style="font-family:monospace">t&#X2019;</span>.
-The (admittedly terse) <span style="color:#A51815"><span style="font-family:monospace">icho</span></span> specifies that these translations should be
+  <span style="color:#007FFF"><span class="tt">|</span></span> ( t )        <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">S</span></span><span style="color:#007FFF"><span class="tt">::</span></span> Paren   <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">icho</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span>  <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> 
+  <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">{</span> t / x <span class="tt">}</span> t&#X2019; <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">M</span></span><span style="color:#007FFF"><span class="tt">::</span></span> Tsub    <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">icho</span></span> (tsubst_t <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>x<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>t&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span>)<span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+</pre><p>
+These specify that <span class="tt">(t)</span> should be translated into just the
+translation of <span class="tt">t</span>, whereas 
+<span class="tt">{</span><span class="tt">t/x</span><span class="tt">}</span><span class="tt">t&#X2019;</span> should be translated into the
+proof-assistant application of <span class="tt">tsubst_t</span> to the translations
+of <span class="tt">t</span>, <span class="tt">x</span>, and <span class="tt">t&#X2019;</span>.
+The (admittedly terse) <span style="color:#A51815"><span class="tt">icho</span></span> specifies that these translations should be
 done uniformly for Isabelle, Coq, HOL, and OCaml output. One can also
 specify just one of these, writing
-<span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#A51815">coq</span></span><span style="font-family:monospace"> </span>&#X2026;<span style="font-family:monospace"><span style="color:#007FFF">}</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span>, 
-<span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#A51815">hol</span></span><span style="font-family:monospace"> </span>&#X2026;<span style="font-family:monospace"><span style="color:#007FFF">}</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span>, 
-<span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#A51815">isa</span></span><span style="font-family:monospace"> </span>&#X2026;<span style="font-family:monospace"><span style="color:#007FFF">}</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span>, or 
-<span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#A51815">ocaml</span></span><span style="font-family:monospace"> </span>&#X2026;<span style="font-family:monospace"><span style="color:#007FFF">}</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span>,
+<span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"> </span><span class="tt"><span style="color:#A51815">coq</span></span><span class="tt"> </span>&#X2026;<span class="tt"><span style="color:#007FFF">}</span></span><span class="tt"><span style="color:#007FFF">}</span></span>, 
+<span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"> </span><span class="tt"><span style="color:#A51815">hol</span></span><span class="tt"> </span>&#X2026;<span class="tt"><span style="color:#007FFF">}</span></span><span class="tt"><span style="color:#007FFF">}</span></span>, 
+<span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"> </span><span class="tt"><span style="color:#A51815">isa</span></span><span class="tt"> </span>&#X2026;<span class="tt"><span style="color:#007FFF">}</span></span><span class="tt"><span style="color:#007FFF">}</span></span>, or 
+<span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"> </span><span class="tt"><span style="color:#A51815">ocaml</span></span><span class="tt"> </span>&#X2026;<span class="tt"><span style="color:#007FFF">}</span></span><span class="tt"><span style="color:#007FFF">}</span></span>,
 or include several, with different translations for each.
-There are also abbreviated forms <span style="color:#A51815"><span style="font-family:monospace">ich</span></span>, <span style="color:#A51815"><span style="font-family:monospace">ic</span></span>, <span style="color:#A51815"><span style="font-family:monospace">ch</span></span>, and <span style="color:#A51815"><span style="font-family:monospace">ih</span></span>.
+There are also abbreviated forms <span style="color:#A51815"><span class="tt">ich</span></span>, <span style="color:#A51815"><span class="tt">ic</span></span>, <span style="color:#A51815"><span class="tt">ch</span></span>, and <span style="color:#A51815"><span class="tt">ih</span></span>.
 The body of a proof assistant hom should normally include outer
-parentheses, as in the <span style="font-family:monospace">Tsub</span> hom above, so that it is
+parentheses, as in the <span class="tt">Tsub</span> hom above, so that it is
 parsed correctly by the proof assistant in all contexts.</p><blockquote class="figure"><div class="center"><hr class="floatrule"></div>
 <span class="lrbox framebox"><div class="minipage"><span style="font-size:small">
 </span><pre class="verbatim"><span style="font-size:small">(* generated by Ott 0.34 from: ../tests/test10.ott ../tests/non_super_tabular.ott *)
@@ -1077,7 +1086,7 @@ <h2 id="sec26" class="section">5&#X2003;Generating proof assistant definitions</
 
 </span></pre><span style="font-size:small">
 </span></div></span>
-<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 5: Generated Coq:<span style="font-family:monospace">test10.v</span><a id="a6"></a></td></tr>
+<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 5: Generated Coq:<span class="tt">test10.v</span><a id="a6"></a></td></tr>
 </table></div>
 <div class="center"><hr class="floatrule"></div></blockquote><blockquote class="figure"><div class="center"><hr class="floatrule"></div>
 <span class="lrbox framebox"><div class="minipage"><span style="font-size:small">
@@ -1132,7 +1141,7 @@ <h2 id="sec26" class="section">5&#X2003;Generating proof assistant definitions</
 
 </span></pre><span style="font-size:small">
 </span></div></span>
-<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 6: Generated Isabelle:<span style="font-family:monospace">test10.thy</span><a id="a5"></a></td></tr>
+<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 6: Generated Isabelle:<span class="tt">test10.thy</span><a id="a5"></a></td></tr>
 </table></div>
 <div class="center"><hr class="floatrule"></div></blockquote><blockquote class="figure"><div class="center"><hr class="floatrule"></div>
 <span class="lrbox framebox"><div class="minipage"><span style="font-size:small">
@@ -1202,14 +1211,14 @@ <h2 id="sec26" class="section">5&#X2003;Generating proof assistant definitions</
 
 </span></pre><span style="font-size:small">
 </span></div></span>
-<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 7: Generated HOL:<span style="font-family:monospace">test10Script.sml</span><a id="a40"></a></td></tr>
+<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 7: Generated HOL:<span class="tt">test10Script.sml</span><a id="a40"></a></td></tr>
 </table></div>
 <div class="center"><hr class="floatrule"></div></blockquote>
 <!--TOC subsection id="sec27" Proof assistant code for grammar rules-->
 <h3 id="sec27" class="subsection">5.1&#X2003;Proof assistant code for grammar rules</h3><!--SEC END --><p>
 The normal behaviour is to generate a free proof assistant type for
 each (non-subrule, non-phantom) grammar rule. 
-For example, the Coq compilation for <span style="font-family:monospace">t</span> here generates a free type with three
+For example, the Coq compilation for <span class="tt">t</span> here generates a free type with three
 constructors:
 </p><pre class="verbatim">  Inductive term : Set := 
    | t_var (x:var)
@@ -1224,51 +1233,51 @@ <h3 id="sec27" class="subsection">5.1&#X2003;Proof assistant code for grammar ru
 </pre><p>
 but we found that trying to preserve the names specified by the user
 is helpful later, when doing proofs. Whenever a clash is detected, or
-for list forms, the wildcard <span style="font-family:monospace">_</span> is used. The old behaviour
+for list forms, the wildcard <span class="tt">_</span> is used. The old behaviour
 can be obtained via the top-level option
-<span style="font-family:monospace">-coq_names_in_rules false</span>.</p><p>By default the order of the arguments to those constructors follows
+<span class="tt">-coq_names_in_rules false</span>.</p><p>By default the order of the arguments to those constructors follows
 the order in which they appear in the production. That can be
-overridden with an <span style="font-family:monospace">order</span> hom. For example, if for some
+overridden with an <span class="tt">order</span> hom. For example, if for some
 reason (perhaps compatibility with other Coq code) one wished the
 arguments to <code class="verb">t_Lam</code> to be reversed:
 </p><pre class="verbatim">   | t_Lam : t -&gt; termvar -&gt; t
 </pre><p>
-one could add an <span style="color:#A51815"><span style="font-family:monospace">order</span></span> hom as below.
+one could add an <span style="color:#A51815"><span class="tt">order</span></span> hom as below.
 </p><pre>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">\</span> x . t      <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">order</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>x<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">\</span> x . t      <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> Lam  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">order</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>x<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>Instead of using the generated free type, one can specify an arbitrary proof assistant representation type,
-annotating the grammar rule with a <span style="color:#A51815"><span style="font-family:monospace">coq</span></span>, <span style="color:#A51815"><span style="font-family:monospace">isa</span></span>, <span style="color:#A51815"><span style="font-family:monospace">hol</span></span>, or <span style="color:#A51815"><span style="font-family:monospace">ocaml</span></span> hom &#X2014;
+annotating the grammar rule with a <span style="color:#A51815"><span class="tt">coq</span></span>, <span style="color:#A51815"><span class="tt">isa</span></span>, <span style="color:#A51815"><span class="tt">hol</span></span>, or <span style="color:#A51815"><span class="tt">ocaml</span></span> hom &#X2014;
 for example, in the following grammar for substitutions.
 </p><pre>
-  s <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="font-family:monospace">\</span>sigma <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;S_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> multiple subst <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> (termvar*t) list <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-       <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> [ x |-&gt; t ]            <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> singleton   <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> [ (<span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>x<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>,<span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>) ]  <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-       <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> s1 , <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> , sn           <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> list        <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> List.concat <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>s1 <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> sn<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+  s <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span class="tt">\</span>sigma <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;S_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> multiple subst <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> (termvar*t) list <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+       <span style="color:#007FFF"><span class="tt">|</span></span> [ x |-&gt; t ]            <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> singleton   <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> [ (<span style="color:#007FFF"><span class="tt">[[</span></span>x<span style="color:#007FFF"><span class="tt">]]</span></span>,<span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span>) ]  <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+       <span style="color:#007FFF"><span class="tt">|</span></span> s1 , <span style="color:#007FFF"><span class="tt">..</span></span> , sn           <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> list        <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> List.concat <span style="color:#007FFF"><span class="tt">[[</span></span>s1 <span style="color:#007FFF"><span class="tt">..</span></span> sn<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>
-Here the <span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#A51815">isa</span></span><span style="font-family:monospace"> (termvar*t) list </span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span> hom specifies that in
+Here the <span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"> </span><span class="tt"><span style="color:#A51815">isa</span></span><span class="tt"> (termvar*t) list </span><span class="tt"><span style="color:#007FFF">}</span></span><span class="tt"><span style="color:#007FFF">}</span></span> hom specifies that in
 Isabelle output this type be represented as an Isabelle
 <code class="verb">(termvar*t) list</code> instead of the default free inductive type;
-all the productions are metaproductions (tagged <span style="color:#A51815"><span style="font-family:monospace">M</span></span>); and <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> homs for each production specify how they should be translated into that Isabelle type.
-This feature must be used with care, as any Ott-generated functions, e.g.&#XA0;substitution functions, cannot recurse through such user-defined types. </p><p>Grammar rules (whether free or non-free) can also include a <span style="color:#A51815"><span style="font-family:monospace">coq equality</span></span> hom, instructing
+all the productions are metaproductions (tagged <span style="color:#A51815"><span class="tt">M</span></span>); and <span style="color:#A51815"><span class="tt">isa</span></span> homs for each production specify how they should be translated into that Isabelle type.
+This feature must be used with care, as any Ott-generated functions, e.g.&#XA0;substitution functions, cannot recurse through such user-defined types. </p><p>Grammar rules (whether free or non-free) can also include a <span style="color:#A51815"><span class="tt">coq equality</span></span> hom, instructing
 the Coq code generator to derive a decidable equality for the Coq
 representation type. For example, the ML polymorphism Ott source of
-<span style="font-family:monospace">test8.ott</span> includes the following.
+<span class="tt">test8.ott</span> includes the following.
 </p><pre>
-  typvar <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> TV_ <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">coq-equality</span></span> decide equality. apply eq_value_name_t. <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-       <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> &#X2019; ident                <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> ident
+  typvar <span style="color:#007FFF"><span class="tt">::</span></span> TV_ <span style="color:#007FFF"><span class="tt">::=</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">coq-equality</span></span> decide equality. apply eq_value_name_t. <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+       <span style="color:#007FFF"><span class="tt">|</span></span> &#X2019; ident                <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> ident
 </pre><p>The Coq/HOL/Isabelle/OCaml type name for a grammar rule, or for a
 metavariable declaration, is normally
 taken to be just its primary nonterminal root. 
 Occasionally it is useful to work around a clash between a
 metavar or nonterminal primary root and a proof assistant symbol,
-e.g.&#XA0;<span style="font-family:monospace">T</span> in HOL or <span style="font-family:monospace">value</span> in Isabelle. 
-For this, one can add a <span style="color:#A51815"><span style="font-family:monospace">coq</span></span>, <span style="color:#A51815"><span style="font-family:monospace">hol</span></span>, <span style="color:#A51815"><span style="font-family:monospace">isa</span></span>, or
-<span style="color:#A51815"><span style="font-family:monospace">ocaml</span></span> hom to the primary nonterminal root. In the example
-below, the user can write <span style="font-family:monospace">T</span>, <span style="font-family:monospace">T&#X2019;</span> etc. in their Ott
-source, but the generated HOL type is <span style="font-family:monospace">Typ</span>.
+e.g.&#XA0;<span class="tt">T</span> in HOL or <span class="tt">value</span> in Isabelle. 
+For this, one can add a <span style="color:#A51815"><span class="tt">coq</span></span>, <span style="color:#A51815"><span class="tt">hol</span></span>, <span style="color:#A51815"><span class="tt">isa</span></span>, or
+<span style="color:#A51815"><span class="tt">ocaml</span></span> hom to the primary nonterminal root. In the example
+below, the user can write <span class="tt">T</span>, <span class="tt">T&#X2019;</span> etc. in their Ott
+source, but the generated HOL type is <span class="tt">Typ</span>.
 </p><pre>
-T <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">hol</span></span> Typ <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">,</span></span> S<span style="color:#007FFF"><span style="font-family:monospace">,</span></span> U <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;T_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>                    <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> type  <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> T -&gt; T&#X2019;                          <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Fun          <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> type of functions <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-</pre><p>The grammar rules within each <span style="color:#A51815"><span style="font-family:monospace">grammar</span></span> block of a syntax definition may depend on each other arbitrarily.
+T <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">hol</span></span> Typ <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">,</span></span> S<span style="color:#007FFF"><span class="tt">,</span></span> U <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;T_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>                    <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> type  <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> T -&gt; T&#X2019;                          <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> Fun          <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> type of functions <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+</pre><p>The grammar rules within each <span style="color:#A51815"><span class="tt">grammar</span></span> block of a syntax definition may depend on each other arbitrarily.
 When generating Isabelle/Coq/HOL/OCaml representation types, however, they are
 topologically sorted, to simplify the resulting induction
 principles.</p>
@@ -1277,19 +1286,19 @@ <h3 id="sec28" class="subsection">5.2&#X2003;Proof assistant code for inductive
 The semantic relations are defined
 with the proof-assistant inductive relations packages, 
 <code class="verb">Inductive</code>, <code class="verb">Hol_reln</code>, and <code class="verb">inductive_set</code> or <code class="verb">inductive</code>, respectively.
-Each <span style="color:#A51815"><span style="font-family:monospace">defns</span></span> block gives rise to a potentially mutually
-recursive definition of each <span style="color:#A51815"><span style="font-family:monospace">defn</span></span> inside it
+Each <span style="color:#A51815"><span class="tt">defns</span></span> block gives rise to a potentially mutually
+recursive definition of each <span style="color:#A51815"><span class="tt">defn</span></span> inside it
 (it seems clearer not to do a topological sort here).
 Definition rules are expressed internally with symbolic terms. 
 We give a simplified grammar thereof in Fig.&#XA0;<a href="#a19">17</a>, omitting the
 symbolic terms for list forms. 
-A symbolic term <span style="font-style:italic">st</span> for a nonterminal root is either an explicit nonterminal or a
+A symbolic term <span class="it">st</span> for a nonterminal root is either an explicit nonterminal or a
 node, the latter labelled with a production name and containing a list of
-<span style="font-style:italic">symterm</span><span style="font-style:italic">_</span><span style="font-style:italic">element</span>s, which in turn are either symbolic terms,
+<span class="it">symterm</span><span class="it">_</span><span class="it">element</span>s, which in turn are either symbolic terms,
 metavariables, or variables.
 Each definition rule 
 gives rise to an implicational clause, essentially
-that the premises (Ott symbolic terms of the <span style="color:#A51815"><span style="font-family:monospace">formula</span></span> grammar)
+that the premises (Ott symbolic terms of the <span style="color:#A51815"><span class="tt">formula</span></span> grammar)
 imply the conclusion (an Ott symbolic term of whichever judgement is
 being defined). 
 Symbolic terms are compiled in several different ways:
@@ -1312,7 +1321,7 @@ <h3 id="sec29" class="subsection">5.3&#X2003;Representation of binding</h3><!--S
 equivalence, as one can see in Fig.&#XA0;<a href="#a5">6</a>:
 see the <code class="verb">t</code> datatype of terms and the <code class="verb">tsubst_t</code>
 substitution function there. 
-An experimental Coq backend generates definitions in locally-nameless style for a subset of the Ott metalanguage. This is work-in-progress, and it is extensively documented in <a href="http://moscova.inria.fr/~zappa/projects/ln_ott/"><span style="font-family:monospace">http://moscova.inria.fr/~zappa/projects/ln_ott/</span></a>.
+An experimental Coq backend generates definitions in locally-nameless style for a subset of the Ott metalanguage. This is work-in-progress, and it is extensively documented in <a href="http://moscova.inria.fr/~zappa/projects/ln_ott/"><span class="tt">http://moscova.inria.fr/~zappa/projects/ln_ott/</span></a>.
 We intend in future to generate other representations, and in some
 circumstances homs can be used to implement other representations directly.
 For a reasonably wide variety of
@@ -1322,11 +1331,11 @@ <h3 id="sec29" class="subsection">5.3&#X2003;Representation of binding</h3><!--S
 semantics does not involve reduction under binders &#X2014; so any
 substitutions are of terms which (except for standard library
 identifiers) are closed. This includes the ML polymorphism example of
-<span style="font-family:monospace">test8.ott</span>. For languages which require a type
+<span class="tt">test8.ott</span>. For languages which require a type
 environment with internal dependencies, however, for example F<sub>&lt;:</sub>, this is
-no longer the case. The POPLmark F<sub>&lt;:</sub> example given in <span style="font-family:monospace">test7.ott</span>
+no longer the case. The POPLmark F<sub>&lt;:</sub> example given in <span class="tt">test7.ott</span>
 has a type system which disallows all shadowing, a property that is
-not preserved by reduction. However, a correct translation of F<sub>&lt;:</sub> is generated by the Coq locally-nameless backend, and can be found in <a href="http://moscova.inria.fr/~zappa/projects/ln_ott/"><span style="font-family:monospace">http://moscova.inria.fr/~zappa/projects/ln_ott/</span></a>.</p><p>Further discussion of binding representations is in the Ott ICFP 2007
+not preserved by reduction. However, a correct translation of F<sub>&lt;:</sub> is generated by the Coq locally-nameless backend, and can be found in <a href="http://moscova.inria.fr/~zappa/projects/ln_ott/"><span class="tt">http://moscova.inria.fr/~zappa/projects/ln_ott/</span></a>.</p><p>Further discussion of binding representations is in the Ott ICFP 2007
 paper and in a working draft 
 </p><blockquote class="quotation">Binding and Substitition. Susmit Sarkar, Peter Sewell, and Francesco
 Zappa Nardelli. August 2007.
@@ -1340,10 +1349,10 @@ <h3 id="sec30" class="subsection">5.4&#X2003;Helper functions for free variable
 functions, by default Ott generates the definitions for any such functions it
 uses. It is possible to turn off the generation of definitions for 
 these such functions by writing the following directive early on in the source file: </p><pre>
-<span style="color:#A51815"><span style="font-family:monospace">embed</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">coq-lib</span></span> list_mem list_minus <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+<span style="color:#A51815"><span class="tt">embed</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">coq-lib</span></span> list_mem list_minus <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>This instructs Ott to avoid generating definition for <code class="verb">list_mem</code> and
 <code class="verb">list_minus</code>, but to continue generating definitions for other functions
-such as <code class="verb">list_assoc</code> and <code class="verb">list_minus2</code>.</p><p><span style="font-weight:bold">Note about </span><code class="verb">list_minus2</code><span style="font-weight:bold">:</span> 
+such as <code class="verb">list_assoc</code> and <code class="verb">list_minus2</code>.</p><p><span class="bf">Note about </span><code class="verb">list_minus2</code><span class="bf">:</span> 
 Instead of using the function <code class="verb">list_minus2</code>, earlier versions of Ott
 generated equivalent code based on <code class="verb">list_filter</code>, which was more
 difficult to reason about. For backwards compatibility, however, we provide the
@@ -1368,20 +1377,20 @@ <h3 id="sec31" class="subsection">5.5&#X2003;Correctness of the generated proof
 not consider it a major issue.</p>
 <!--TOC subsection id="sec32" Using the generated proof assistant code-->
 <h3 id="sec32" class="subsection">5.6&#X2003;Using the generated proof assistant code</h3><!--SEC END --><p>
-Note added 2017-11-30: the following is out of date. </p><p>Ott builds code for </p><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" >Coq 8.3</td><td style="text-align:left;white-space:nowrap" ><a href="http://coq.inria.fr/"><span style="font-family:monospace">http://coq.inria.fr/</span></a> </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >HOL 4 (the current svn version)</td><td style="text-align:left;white-space:nowrap" ><a href="http://hol.sourceforge.net/"><span style="font-family:monospace">http://hol.sourceforge.net/</span></a></td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >Isabelle/HOL (Isabelle 2011)</td><td style="text-align:left;white-space:nowrap" ><a href="http://isabelle.in.tum.de/"><span style="font-family:monospace">http://isabelle.in.tum.de/</span></a>
+Note added 2017-11-30: the following is out of date. </p><p>Ott builds code for </p><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" >Coq 8.3</td><td style="text-align:left;white-space:nowrap" ><a href="http://coq.inria.fr/"><span class="tt">http://coq.inria.fr/</span></a> </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >HOL 4 (the current svn version)</td><td style="text-align:left;white-space:nowrap" ><a href="http://hol.sourceforge.net/"><span class="tt">http://hol.sourceforge.net/</span></a></td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >Isabelle/HOL (Isabelle 2011)</td><td style="text-align:left;white-space:nowrap" ><a href="http://isabelle.in.tum.de/"><span class="tt">http://isabelle.in.tum.de/</span></a>
 </td></tr>
 </table><p>Given proof assistant files in the top-level directory of the
 distribution, as produced at the start of this section
-(Coq <span style="font-family:monospace">out.v</span>, Isabelle <span style="font-family:monospace">out.thy</span>, and HOL
-<span style="font-family:monospace">outScript.sml</span>), the various proof assistants can be invoked as follows.</p>
+(Coq <span class="tt">out.v</span>, Isabelle <span class="tt">out.thy</span>, and HOL
+<span class="tt">outScript.sml</span>), the various proof assistants can be invoked as follows.</p>
 <!--TOC subsubsection id="sec33" Coq-->
 <h4 id="sec33" class="subsubsection">5.6.1&#X2003;Coq</h4><!--SEC END --><p>
 First run 
 </p><pre class="verbatim">  make
 </pre><p>
-in the <span style="font-family:monospace">coq</span> directory of the distribution, to build the auxiliary files.
+in the <span class="tt">coq</span> directory of the distribution, to build the auxiliary files.
 These include a core file (<code class="verb">ott_list_core</code>) of definitions that
 are used in Ott-generated output. 
 At present these are only required when Coq native lists are used. 
@@ -1396,7 +1405,7 @@ <h4 id="sec34" class="subsubsection">5.6.2&#X2003;HOL</h4><!--SEC END --><p>
 First run 
 </p><pre class="verbatim">  Holmake
 </pre><p>
-in the <span style="font-family:monospace">hol</span> directory of the distribution, to build the auxiliary files.</p><p>For
+in the <span class="tt">hol</span> directory of the distribution, to build the auxiliary files.</p><p>For
 batch mode run
 </p><pre class="verbatim">  Holmake -I hol  outTheory.uo
 </pre><p>
@@ -1421,51 +1430,51 @@ <h4 id="sec35" class="subsubsection">5.6.3&#X2003;Isabelle</h4><!--SEC END --><p
 <h2 id="sec36" class="section">6&#X2003;Judgments and formulae</h2><!--SEC END --><p><a id="a53"></a>In a semantic rule, for example
 </p><pre>
     t1 --&gt; t1&#X2019;
-<span style="color:#007FFF"><span style="font-family:monospace">    -------------- ::</span></span> ctx_app_arg
+<span style="color:#007FFF"><span class="tt">    -------------- ::</span></span> ctx_app_arg
     v t1 --&gt; v t1&#X2019;
 </pre><p>
 the conclusion must be a symbolic term of the form of the judgement being
 defined, but in general the premises may be symbolic terms
-of a <span style="color:#A51815"><span style="font-family:monospace">formula</span></span> grammar or in-line embedded prover code.
+of a <span style="color:#A51815"><span class="tt">formula</span></span> grammar or in-line embedded prover code.
 By default the formula grammar includes all the defined judgement forms: for the
 running example Ott will synthesise grammars as below.</p><p><img src="top2005.png"></p><p>The user can also define an explicit formula grammar, to let other
 forms (not just judgements) appear as rule premises. Below is a
 fragment of the formula grammar from the LJ example on the Ott web page.
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">formula</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> formula_ <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>  
-   <span style="color:#007FFF"><span style="font-family:monospace">|</span></span>  judgement                       <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> judgement
-   <span style="color:#007FFF"><span style="font-family:monospace">|</span></span>  formula1 <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> formulan            <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> dots
-   <span style="color:#007FFF"><span style="font-family:monospace">|</span></span>  not <span style="color:#A51815"><span style="font-family:monospace">formula</span></span>                     <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">M</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> not
-          <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="font-family:monospace">\</span>neg <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">formula</span></span><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> 
-          <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> <span style="font-family:monospace">\</span>&lt;not&gt; (<span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">formula</span></span><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>) <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-   <span style="color:#007FFF"><span style="font-family:monospace">|</span></span>  ( <span style="color:#A51815"><span style="font-family:monospace">formula</span></span> )                     <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">M</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> brackets
-          <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> (<span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">formula</span></span><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span><span style="font-family:monospace">\</span>!) <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>  
-          <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">formula</span></span><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-   <span style="color:#007FFF"><span style="font-family:monospace">|</span></span>  <span style="color:#A51815"><span style="font-family:monospace">formula</span></span> <span style="font-family:monospace">\</span>/ <span style="color:#A51815"><span style="font-family:monospace">formula</span></span>&#X2019;             <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">M</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> or
-          <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">formula</span></span><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="font-family:monospace">\</span>vee <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">formula</span></span>&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-          <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">formula</span></span><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="font-family:monospace">\</span>&lt;or&gt; <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">formula</span></span>&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-   <span style="color:#007FFF"><span style="font-family:monospace">|</span></span>  <span style="color:#A51815"><span style="font-family:monospace">formula</span></span> /<span style="font-family:monospace">\</span> <span style="color:#A51815"><span style="font-family:monospace">formula</span></span>&#X2019;             <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">M</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> and
-          <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">formula</span></span><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="font-family:monospace">\</span>wedge <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">formula</span></span>&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-          <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">formula</span></span><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="font-family:monospace">\</span>&lt;and&gt; <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span><span style="color:#A51815"><span style="font-family:monospace">formula</span></span>&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-   <span style="color:#007FFF"><span style="font-family:monospace">|</span></span>  x = x&#X2019;                          <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">M</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> xali
-          <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>x<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> = <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>x&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-   <span style="color:#007FFF"><span style="font-family:monospace">|</span></span>  X = X&#X2019;                          <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">M</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Xali
-          <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>X<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> = <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>X&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+  <span style="color:#A51815"><span class="tt">formula</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> formula_ <span style="color:#007FFF"><span class="tt">::=</span></span>  
+   <span style="color:#007FFF"><span class="tt">|</span></span>  judgement                       <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> judgement
+   <span style="color:#007FFF"><span class="tt">|</span></span>  formula1 <span style="color:#007FFF"><span class="tt">..</span></span> formulan            <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> dots
+   <span style="color:#007FFF"><span class="tt">|</span></span>  not <span style="color:#A51815"><span class="tt">formula</span></span>                     <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">M</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> not
+          <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span class="tt">\</span>neg <span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">formula</span></span><span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> 
+          <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> <span class="tt">\</span>&lt;not&gt; (<span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">formula</span></span><span style="color:#007FFF"><span class="tt">]]</span></span>) <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+   <span style="color:#007FFF"><span class="tt">|</span></span>  ( <span style="color:#A51815"><span class="tt">formula</span></span> )                     <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">M</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> brackets
+          <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> (<span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">formula</span></span><span style="color:#007FFF"><span class="tt">]]</span></span><span class="tt">\</span>!) <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>  
+          <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">formula</span></span><span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+   <span style="color:#007FFF"><span class="tt">|</span></span>  <span style="color:#A51815"><span class="tt">formula</span></span> <span class="tt">\</span>/ <span style="color:#A51815"><span class="tt">formula</span></span>&#X2019;             <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">M</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> or
+          <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">formula</span></span><span style="color:#007FFF"><span class="tt">]]</span></span> <span class="tt">\</span>vee <span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">formula</span></span>&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+          <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">formula</span></span><span style="color:#007FFF"><span class="tt">]]</span></span> <span class="tt">\</span>&lt;or&gt; <span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">formula</span></span>&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+   <span style="color:#007FFF"><span class="tt">|</span></span>  <span style="color:#A51815"><span class="tt">formula</span></span> /<span class="tt">\</span> <span style="color:#A51815"><span class="tt">formula</span></span>&#X2019;             <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">M</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> and
+          <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">formula</span></span><span style="color:#007FFF"><span class="tt">]]</span></span> <span class="tt">\</span>wedge <span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">formula</span></span>&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+          <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">formula</span></span><span style="color:#007FFF"><span class="tt">]]</span></span> <span class="tt">\</span>&lt;and&gt; <span style="color:#007FFF"><span class="tt">[[</span></span><span style="color:#A51815"><span class="tt">formula</span></span>&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+   <span style="color:#007FFF"><span class="tt">|</span></span>  x = x&#X2019;                          <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">M</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> xali
+          <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>x<span style="color:#007FFF"><span class="tt">]]</span></span> = <span style="color:#007FFF"><span class="tt">[[</span></span>x&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+   <span style="color:#007FFF"><span class="tt">|</span></span>  X = X&#X2019;                          <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">M</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> Xali
+          <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>X<span style="color:#007FFF"><span class="tt">]]</span></span> = <span style="color:#007FFF"><span class="tt">[[</span></span>X&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>
 This example adds (to the judgement forms) syntax for parenthesised
 formulae, negation, and, or, and equality testing on two sorts. For
-each, <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> and <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> homs specify how they should be
-typeset and be translated into Isabelle.</p><p>If the user defines a <span style="color:#A51815"><span style="font-family:monospace">formula</span></span> grammar then (as here) the production
-name prefix must be <span style="font-family:monospace">formula_</span> and the name for the
-<span style="font-family:monospace">judgement</span> production must be <span style="font-family:monospace">judgement</span>.</p>
+each, <span style="color:#A51815"><span class="tt">tex</span></span> and <span style="color:#A51815"><span class="tt">isa</span></span> homs specify how they should be
+typeset and be translated into Isabelle.</p><p>If the user defines a <span style="color:#A51815"><span class="tt">formula</span></span> grammar then (as here) the production
+name prefix must be <span class="tt">formula_</span> and the name for the
+<span class="tt">judgement</span> production must be <span class="tt">judgement</span>.</p>
 <!--TOC subsection id="sec37" Naming of premises for the Coq backend-->
 <h3 id="sec37" class="subsection">6.1&#X2003;Naming of premises for the Coq backend</h3><!--SEC END --><p>
 It is possible to specify the names of premises of inductive
 predicates; these names are then used by the Coq backend, and are
-often useful in proofs. For instance, we can call <span style="font-family:monospace">RED</span> the hypothesis in the rule below
+often useful in proofs. For instance, we can call <span class="tt">RED</span> the hypothesis in the rule below
 </p><pre>
     t1 --&gt; t1&#X2019;  [[:RED]]
-<span style="color:#007FFF"><span style="font-family:monospace">    -------------- ::</span></span> ctx_app_arg
+<span style="color:#007FFF"><span class="tt">    -------------- ::</span></span> ctx_app_arg
     v t1 --&gt; v t1&#X2019;
 </pre><p>
 which will then generate the following Coq code:
@@ -1478,23 +1487,23 @@ <h3 id="sec37" class="subsection">6.1&#X2003;Naming of premises for the Coq back
 Names of rules cannot contain spaces or other non alpha-numerical
 characters, and must begin with a letter. The name annotation must at
 the rightmost place on the hypothesis line, and must be enclosed
-(without spaces) between the <span style="font-family:monospace">[[:</span> and <span style="font-family:monospace">]]</span> parentheses.</p>
+(without spaces) between the <span class="tt">[[:</span> and <span class="tt">]]</span> parentheses.</p>
 <!--TOC subsection id="sec38" In-line embedded prover code in premises-->
 <h3 id="sec38" class="subsection">6.2&#X2003;In-line embedded prover code in premises</h3><!--SEC END --><p>
 Instead of adding a formula production, one can directly embed prover
-code as a premise, delimited as below by <span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"><span style="color:#007FFF">{</span></span> and
-<span style="font-family:monospace"><span style="color:#007FFF">}</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span>. Within that, text will be echoed
+code as a premise, delimited as below by <span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"><span style="color:#007FFF">{</span></span> and
+<span class="tt"><span style="color:#007FFF">}</span></span><span class="tt"><span style="color:#007FFF">}</span></span>. Within that, text will be echoed
 directly to a prover (or given a default L<sup>A</sup>T<sub>E</sub>X typesetting) except that symbolic terms enclosed within
-<span style="font-family:monospace"><span style="color:#007FFF">[[</span></span> and <span style="font-family:monospace"><span style="color:#007FFF">]]</span></span> will be processed as in an
-<span style="color:#A51815"><span style="font-family:monospace">embed</span></span> section. 
+<span class="tt"><span style="color:#007FFF">[[</span></span> and <span class="tt"><span style="color:#007FFF">]]</span></span> will be processed as in an
+<span style="color:#A51815"><span class="tt">embed</span></span> section. 
 </p><pre>
-  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> type_to_chunk (<span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>typeof e1<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>) = Some <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>c<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">----------------------------------------------------------- ::</span></span> Assign1
+  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> type_to_chunk (<span style="color:#007FFF"><span class="tt">[[</span></span>typeof e1<span style="color:#007FFF"><span class="tt">]]</span></span>) = Some <span style="color:#007FFF"><span class="tt">[[</span></span>c<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">----------------------------------------------------------- ::</span></span> Assign1
   e1=e2 . k |env   --tau--&gt;    lval(e1) . [__=c e2] . k |env
 </pre>
 <!--TOC subsection id="sec39" User syntax-->
 <h3 id="sec39" class="subsection">6.3&#X2003;User syntax</h3><!--SEC END --><p>
-The tool also synthesises a <span style="font-family:monospace">user_syntax</span> grammar of all the
+The tool also synthesises a <span class="tt">user_syntax</span> grammar of all the
 user syntax, for example:</p><p><img src="top2006.png"></p><p>This is used for parsing top-level strings, for example when filtering
 embedded code (&#XA7;<a href="#a54">8</a>).</p>
 <!--TOC section id="sec40" Concrete terms and OCaml generation-->
@@ -1502,30 +1511,30 @@ <h2 id="sec40" class="section">7&#X2003;Concrete terms and OCaml generation</h2>
 only metavariables that range over them. 
 In examples, however, one may need either a mix of concrete variables
 and metavariables, or, for strictly concrete terms, to restrict to
-just the former (and also to prohibit symbolic nonterminals).</p><p>Figure&#XA0;<a href="#a46">2</a> combines the LaTeX and proof assistant
+just the former (and also to prohibit symbolic nonterminals).</p><p>Figure&#XA0;<a href="#a68">8</a> combines the LaTeX and proof assistant
 annotations of Sections <a href="#a51">3</a> and <a href="#a58">4</a>, adding a
-<span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#A51815">lex</span></span><span style="font-family:monospace"> alphanum</span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span>
+<span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"> </span><span class="tt"><span style="color:#A51815">lex</span></span><span class="tt"> alphanum</span><span class="tt"><span style="color:#007FFF">}</span></span><span class="tt"><span style="color:#007FFF">}</span></span>
 hom
-to the <span style="color:#A51815"><span style="font-family:monospace">metavar</span></span> declaration to specify the lexical form of
+to the <span style="color:#A51815"><span class="tt">metavar</span></span> declaration to specify the lexical form of
 concrete variables of this sort. 
-At present a <span style="color:#A51815"><span style="font-family:monospace">lex</span></span> homomorphism must have body either
-<span style="color:#A51815"><span style="font-family:monospace">Alphanum</span></span> (standing for <code class="verb">[A-Z]([A-Z]|[a-z]|[0-9]|'|_)*</code>),
-<span style="color:#A51815"><span style="font-family:monospace">alphanum</span></span> (for <code class="verb">([A-Z]|[a-z])([A-Z]|[a-z]|[0-9]|'|_)*</code>),
-<span style="color:#A51815"><span style="font-family:monospace">alphanum0</span></span> (for <code class="verb">[a-z]([A-Z]|[a-z]|[0-9]|'|_)*</code>), or
-<span style="color:#A51815"><span style="font-family:monospace">numeral</span></span> (for <code class="verb">[0-9][0-9]*</code>); more general regular expressions are not supported.
+At present a <span style="color:#A51815"><span class="tt">lex</span></span> homomorphism must have body either
+<span style="color:#A51815"><span class="tt">Alphanum</span></span> (standing for <code class="verb">[A-Z]([A-Z]|[a-z]|[0-9]|'|_)*</code>),
+<span style="color:#A51815"><span class="tt">alphanum</span></span> (for <code class="verb">([A-Z]|[a-z])([A-Z]|[a-z]|[0-9]|'|_)*</code>),
+<span style="color:#A51815"><span class="tt">alphanum0</span></span> (for <code class="verb">[a-z]([A-Z]|[a-z]|[0-9]|'|_)*</code>), or
+<span style="color:#A51815"><span class="tt">numeral</span></span> (for <code class="verb">[0-9][0-9]*</code>); more general regular expressions are not supported.
 An identifier that can be ambiguously lexed as either a concrete or
-symbolic metavariable, e.g.&#XA0;<span style="font-family:monospace">x</span> in the scope of the above
+symbolic metavariable, e.g.&#XA0;<span class="tt">x</span> in the scope of the above
 declaration, will be taken to be symbolic. 
 To restrict the parser to strictly concrete terms only, one can add a
-<span style="color:#A51815"><span style="font-family:monospace">:concrete:</span></span> prefix, as shown in Figure&#XA0;<a href="#a56">10</a>.</p><p>One can also specify how concrete variables should be LaTeX&#X2019;d or
+<span style="color:#A51815"><span class="tt">:concrete:</span></span> prefix, as shown in Figure&#XA0;<a href="#a56">10</a>.</p><p>One can also specify how concrete variables should be LaTeX&#X2019;d or
 translated into a proof assistant, e.g.&#XA0;with
 homomorphisms 
-<span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#A51815">texvar</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace">\</span><span style="font-family:monospace">mathrm</span><span style="font-family:monospace">{</span><span style="font-family:monospace"><span style="color:#007FFF">[[</span></span><span style="font-family:monospace">termvar</span><span style="font-family:monospace"><span style="color:#007FFF">]]</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span>
+<span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"> </span><span class="tt"><span style="color:#A51815">texvar</span></span><span class="tt"> </span><span class="tt">\</span><span class="tt">mathrm</span><span class="tt">{</span><span class="tt"><span style="color:#007FFF">[[</span></span><span class="tt">termvar</span><span class="tt"><span style="color:#007FFF">]]</span></span><span class="tt"><span style="color:#007FFF">}</span></span><span class="tt"><span style="color:#007FFF">}</span></span>
 and
-<span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#A51815">isavar</span></span><span style="font-family:monospace"> &#X2019;&#X2019;</span><span style="font-family:monospace"><span style="color:#007FFF">[[</span></span><span style="font-family:monospace">termvar</span><span style="font-family:monospace"><span style="color:#007FFF">]]</span></span><span style="font-family:monospace">&#X2019;&#X2019;</span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span>
-(and similarly <span style="color:#A51815"><span style="font-family:monospace">coqvar</span></span>, <span style="color:#A51815"><span style="font-family:monospace">holvar</span></span>, and <span style="color:#A51815"><span style="font-family:monospace">ocamlvar</span></span>).</p><p>Figure&#XA0;<a href="#a46">2</a> also specifies an OCaml representation type for
-variables, with the <span style="color:#A51815"><span style="font-family:monospace">metavar</span></span> hom
-<span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"><span style="color:#007FFF">{</span></span><span style="font-family:monospace"> </span><span style="font-family:monospace"><span style="color:#A51815">ocaml</span></span><span style="font-family:monospace"> int</span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span><span style="font-family:monospace"><span style="color:#007FFF">}</span></span>.
+<span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"> </span><span class="tt"><span style="color:#A51815">isavar</span></span><span class="tt"> &#X2019;&#X2019;</span><span class="tt"><span style="color:#007FFF">[[</span></span><span class="tt">termvar</span><span class="tt"><span style="color:#007FFF">]]</span></span><span class="tt">&#X2019;&#X2019;</span><span class="tt"><span style="color:#007FFF">}</span></span><span class="tt"><span style="color:#007FFF">}</span></span>
+(and similarly <span style="color:#A51815"><span class="tt">coqvar</span></span>, <span style="color:#A51815"><span class="tt">holvar</span></span>, and <span style="color:#A51815"><span class="tt">ocamlvar</span></span>).</p><p>Figure&#XA0;<a href="#a68">8</a> also specifies an OCaml representation type for
+variables, with the <span style="color:#A51815"><span class="tt">metavar</span></span> hom
+<span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"><span style="color:#007FFF">{</span></span><span class="tt"> </span><span class="tt"><span style="color:#A51815">ocaml</span></span><span class="tt"> int</span><span class="tt"><span style="color:#007FFF">}</span></span><span class="tt"><span style="color:#007FFF">}</span></span>.
 Executing 
 </p><pre>
    bin/ott -i tests/test10.ott -o test10.ml  
@@ -1538,53 +1547,53 @@ <h2 id="sec40" class="section">7&#X2003;Concrete terms and OCaml generation</h2>
 <span class="lrbox framebox"><div class="minipage"><span style="font-size:small">
 </span><pre><span style="font-size:small">
 % all
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">metavar</span></span></span><span style="font-size:small"> termvar</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">,</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small">  term variable </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> 
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">isa</span></span></span><span style="font-size:small"> string</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">coq</span></span></span><span style="font-size:small"> nat</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">hol</span></span></span><span style="font-size:small"> string</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">coq-equality</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">ocaml</span></span></span><span style="font-size:small"> int</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">lex</span></span></span><span style="font-size:small"> alphanum</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">tex</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small">mathit</span><span style="font-size:small"><span style="font-family:monospace">{</span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span></span><span style="font-size:small">termvar</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span></span><span style="font-size:small"><span style="font-family:monospace">}</span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">metavar</span></span></span><span style="font-size:small"> termvar</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">,</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small">  term variable </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> 
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">isa</span></span></span><span style="font-size:small"> string</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">coq</span></span></span><span style="font-size:small"> nat</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">hol</span></span></span><span style="font-size:small"> string</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">coq-equality</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">ocaml</span></span></span><span style="font-size:small"> int</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">lex</span></span></span><span style="font-size:small"> alphanum</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">tex</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small">mathit</span><span style="font-size:small"><span class="tt">{</span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">[[</span></span></span><span style="font-size:small">termvar</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">]]</span></span></span><span style="font-size:small"><span class="tt">}</span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">grammar</span></span></span><span style="font-size:small">
-t </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X2019;t_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">                               </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> term    </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> x            </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Var                   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> variable</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Lam </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">(+</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">bind</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">in</span></span></span><span style="font-size:small"> t </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">+)</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> lambda  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> t t&#X2019;         </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> App                   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> app     </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> ( t )        </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">S</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Paren                 </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">icho</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span></span><span style="font-size:small">t</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> 
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">{</span></span><span style="font-size:small"> t / x </span><span style="font-size:small"><span style="font-family:monospace">}</span></span><span style="font-size:small"> t&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">M</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Tsub  
-                        </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">icho</span></span></span><span style="font-size:small"> (tsubst_t </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span></span><span style="font-size:small">t</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span></span><span style="font-size:small">x</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span></span><span style="font-size:small">t&#X2019;</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span></span><span style="font-size:small">)</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">grammar</span></span></span><span style="font-size:small">
+t </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X2019;t_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">                               </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> term    </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> x            </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Var                   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> variable</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Lam </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">(+</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">bind</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">in</span></span></span><span style="font-size:small"> t </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">+)</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> lambda  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> t t&#X2019;         </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> App                   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> app     </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> ( t )        </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">S</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Paren                 </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">icho</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">[[</span></span></span><span style="font-size:small">t</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">]]</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> 
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">{</span></span><span style="font-size:small"> t / x </span><span style="font-size:small"><span class="tt">}</span></span><span style="font-size:small"> t&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">M</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Tsub  
+                        </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">icho</span></span></span><span style="font-size:small"> (tsubst_t </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">[[</span></span></span><span style="font-size:small">t</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">]]</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">[[</span></span></span><span style="font-size:small">x</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">]]</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">[[</span></span></span><span style="font-size:small">t&#X2019;</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">]]</span></span></span><span style="font-size:small">)</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
 
-v </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X2019;v_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">                               </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> value   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Lam                   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> lambda  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
+v </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X2019;v_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">                               </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> value   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small"> x . t      </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Lam                   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> lambda  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">terminals</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X2019;terminals_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small">            </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> lambda  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">tex</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small">lambda </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> --&gt;          </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> red     </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">tex</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small">longrightarrow </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">terminals</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X2019;terminals_&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small">            </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> lambda  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">tex</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small">lambda </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> --&gt;          </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> red     </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">tex</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small">longrightarrow </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">subrules</span></span></span><span style="font-size:small">
-  v </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;::</span></span></span><span style="font-size:small"> t
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">subrules</span></span></span><span style="font-size:small">
+  v </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;::</span></span></span><span style="font-size:small"> t
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">substitutions</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">single</span></span></span><span style="font-size:small"> t x </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> tsubst 
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">substitutions</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">single</span></span></span><span style="font-size:small"> t x </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> tsubst 
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">defns</span></span></span><span style="font-size:small">
-Jop </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">defns</span></span></span><span style="font-size:small">
+Jop </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">
 
- </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">defn</span></span></span><span style="font-size:small">
- t1 --&gt; t2 </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">reduce</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">&#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> $</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span></span><span style="font-size:small">t1</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span></span><span style="font-size:small">$ reduces to $</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span></span><span style="font-size:small">t2</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">]]</span></span></span><span style="font-size:small">$</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">by</span></span></span><span style="font-size:small">
+ </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">defn</span></span></span><span style="font-size:small">
+ t1 --&gt; t2 </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">reduce</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">&#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> $</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">[[</span></span></span><span style="font-size:small">t1</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">]]</span></span></span><span style="font-size:small">$ reduces to $</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">[[</span></span></span><span style="font-size:small">t2</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">]]</span></span></span><span style="font-size:small">$</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">by</span></span></span><span style="font-size:small">
 
 
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">    --------------------------</span></span></span><span style="font-size:small">  :: ax_app
-    (</span><span style="font-size:small"><span style="font-family:monospace">\</span></span><span style="font-size:small">x.t12) v2 --&gt;  </span><span style="font-size:small"><span style="font-family:monospace">{</span></span><span style="font-size:small">v2/x</span><span style="font-size:small"><span style="font-family:monospace">}</span></span><span style="font-size:small">t12
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">    --------------------------</span></span></span><span style="font-size:small">  :: ax_app
+    (</span><span style="font-size:small"><span class="tt">\</span></span><span style="font-size:small">x.t12) v2 --&gt;  </span><span style="font-size:small"><span class="tt">{</span></span><span style="font-size:small">v2/x</span><span style="font-size:small"><span class="tt">}</span></span><span style="font-size:small">t12
 
     t1 --&gt; t1&#X2019;
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_fun
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_fun
     t1 t --&gt; t1&#X2019; t
 
     t1 --&gt; t1&#X2019;
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_arg
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">    --------------</span></span></span><span style="font-size:small"> :: ctx_app_arg
     v t1 --&gt; v t1&#X2019;
 </span></pre><span style="font-size:small">
 
 </span></div></span>
-<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 8: Source: <span style="font-family:monospace">test10.7.ott</span><a id="a68"></a></td></tr>
+<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 8: Source: <span class="tt">test10.7.ott</span><a id="a68"></a></td></tr>
 </table></div>
 <div class="center"><hr class="floatrule"></div></blockquote><blockquote class="figure"><div class="center"><hr class="floatrule"></div>
 <span class="lrbox framebox"><div class="minipage"><span style="font-size:small">
@@ -1621,7 +1630,7 @@ <h2 id="sec40" class="section">7&#X2003;Concrete terms and OCaml generation</h2>
 
 </span></pre><span style="font-size:small">
 </span></div></span>
-<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 9: Generated OCaml code: <span style="font-family:monospace">test10.ml</span><a id="a59"></a></td></tr>
+<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 9: Generated OCaml code: <span class="tt">test10.ml</span><a id="a59"></a></td></tr>
 </table></div>
 <div class="center"><hr class="floatrule"></div></blockquote>
 <!--TOC section id="sec41" Filtering: Using Ott syntax within LaTeX, Coq, Isabelle,
@@ -1630,59 +1639,59 @@ <h2 id="sec41" class="section">8&#X2003;Filtering: Using Ott syntax within LaTeX
 HOL, or OCaml</h2><!--SEC END --><p><a id="a54"></a></p>
 <!--TOC subsection id="sec42" Filtering embedded code-->
 <h3 id="sec42" class="subsection">8.1&#X2003;Filtering embedded code</h3><!--SEC END --><p><a id="a60"></a>It is possible to embed arbitrary code in
-the Ott source using an <span style="color:#A51815"><span style="font-family:monospace">embed</span></span> block, which can contain
-<span style="color:#A51815"><span style="font-family:monospace">tex</span></span>, 
-<span style="color:#A51815"><span style="font-family:monospace">coq</span></span>, 
-<span style="color:#A51815"><span style="font-family:monospace">hol</span></span>, 
-<span style="color:#A51815"><span style="font-family:monospace">isa</span></span>, or
-<span style="color:#A51815"><span style="font-family:monospace">ocaml</span></span> homomorphisms, the
+the Ott source using an <span style="color:#A51815"><span class="tt">embed</span></span> block, which can contain
+<span style="color:#A51815"><span class="tt">tex</span></span>, 
+<span style="color:#A51815"><span class="tt">coq</span></span>, 
+<span style="color:#A51815"><span class="tt">hol</span></span>, 
+<span style="color:#A51815"><span class="tt">isa</span></span>, or
+<span style="color:#A51815"><span class="tt">ocaml</span></span> homomorphisms, the
 bodies of which will appear in the respective output. 
 The <code class="verb">embed</code> keyword should be on a line by itself). For
 example, 
 <code class="verb">test8.ott</code> contains the following to
 define Coq and HOL <code class="verb">remove_duplicates</code> functions.
 </p><pre>
-<span style="color:#A51815"><span style="font-family:monospace">embed</span></span>
-<span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">coq</span></span>
+<span style="color:#A51815"><span class="tt">embed</span></span>
+<span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">coq</span></span>
 Fixpoint remove_duplicates (l:list typvar_t) : list typvar_t :=
   match l with
   | nil =&gt; nil
   | cons h t =&gt; if (list_mem eq_typvar_t h t)  then remove_duplicates t
                 else cons h (remove_duplicates t)
-end. <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+end. <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 
-<span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">hol</span></span>
+<span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">hol</span></span>
 val _ = Define &#X2018;
-  (remove_duplicates [] = []) /<span style="font-family:monospace">\</span>
+  (remove_duplicates [] = []) /<span class="tt">\</span>
   (remove_duplicates (x::xs) = if (MEM x xs) then remove_duplicates xs 
                                else x::(remove_duplicates xs))
-&#X2018;; <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+&#X2018;; <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>
-Within the body of an <span style="color:#A51815"><span style="font-family:monospace">embed</span></span> homomorphism, any text between 
-<span style="color:#007FFF"><span style="font-family:monospace">[[</span></span> and <span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> will be parsed as a symbolic term (of the
+Within the body of an <span style="color:#A51815"><span class="tt">embed</span></span> homomorphism, any text between 
+<span style="color:#007FFF"><span class="tt">[[</span></span> and <span style="color:#007FFF"><span class="tt">]]</span></span> will be parsed as a symbolic term (of the
 <code class="verb">user_syntax</code> grammar) and pretty printed, so one can use user
 syntax within LaTeX or proof assistant code. An Isabelle example
 is below, defining an Isabelle function to calculate the order of a
 type with productions <code class="verb">unit</code>, <code class="verb">t*t'</code>, and <code class="verb">t-&gt;t'</code>.
 </p><pre>
-<span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span>
+<span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span>
 consts
 order :: "type =&gt; nat"
 primrec
-"order <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>unit<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> = 0"
-"order <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t*t&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> = max (order <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>) (order <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>)"
-"order <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t-&gt;t&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> = max (1+order <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>) (order <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>)"
+"order <span style="color:#007FFF"><span class="tt">[[</span></span>unit<span style="color:#007FFF"><span class="tt">]]</span></span> = 0"
+"order <span style="color:#007FFF"><span class="tt">[[</span></span>t*t&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span> = max (order <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span>) (order <span style="color:#007FFF"><span class="tt">[[</span></span>t&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span>)"
+"order <span style="color:#007FFF"><span class="tt">[[</span></span>t-&gt;t&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span> = max (1+order <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span>) (order <span style="color:#007FFF"><span class="tt">[[</span></span>t&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span>)"
 
-<span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+<span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>
 It is often useful to define a proof assistant function, in an
-<span style="color:#A51815"><span style="font-family:monospace">embed</span></span> section, together with a production of the <span style="color:#A51815"><span style="font-family:monospace">formula</span></span>
+<span style="color:#A51815"><span class="tt">embed</span></span> section, together with a production of the <span style="color:#A51815"><span class="tt">formula</span></span>
 grammar with a proof assistant hom that uses that function, thereby
-introducing syntax that lets the function be used in semantic rules. </p><p>Ott also permits embed blocks with <span style="color:#A51815"><span style="font-family:monospace">tex-preamble</span></span>,
+introducing syntax that lets the function be used in semantic rules. </p><p>Ott also permits embed blocks with <span style="color:#A51815"><span class="tt">tex-preamble</span></span>,
 homs, whose
 contents appear in the generated L<sup>A</sup>T<sub>E</sub>X preamble.
 Any definitions of L<sup>A</sup>T<sub>E</sub>X commands must appear in such a
-<span style="color:#A51815"><span style="font-family:monospace">tex-preamble</span></span> section.
+<span style="color:#A51815"><span class="tt">tex-preamble</span></span> section.
 </p>
 <!--TOC subsection id="sec43" Filtering files-->
 <h3 id="sec43" class="subsection">8.2&#X2003;Filtering files</h3><!--SEC END --><p>
@@ -1691,7 +1700,7 @@ <h3 id="sec43" class="subsection">8.2&#X2003;Filtering files</h3><!--SEC END -->
 Each of these takes two arguments, a source filename and a destination
 filename. In processing the source file, 
 any text between 
-<span style="color:#007FFF"><span style="font-family:monospace">[[</span></span> and <span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> will be parsed as a symbolic term (of the
+<span style="color:#007FFF"><span class="tt">[[</span></span> and <span style="color:#007FFF"><span class="tt">]]</span></span> will be parsed as a symbolic term (of the
 <code class="verb">user_syntax</code> grammar) and pretty printed in the appropriate
 style. All other text is simply echoed.
 </p><p>Typical usage for LaTeX would be something like this (from the <code class="verb">Makefile</code>
@@ -1721,8 +1730,8 @@ <h3 id="sec43" class="subsection">8.2&#X2003;Filtering files</h3><!--SEC END -->
 put within <code class="verb">$</code> <code class="verb">$</code>, and there is no analogue of the
 <code class="verb">&lt;[</code> <code class="verb">]&gt;</code> of our previous munger. </p><p>The lexing 
 turns any sequence of <code class="verb">[</code> (resp. of <code class="verb">]</code>) of
-length <span style="font-style:italic">n</span>+1 for <span style="font-style:italic">n</span>&gt;2 into a literal sequence of length <span style="font-style:italic">n</span>.</p><p>Figures&#XA0;<a href="#a56">10</a> and <a href="#a55">11</a> show a source file (<span style="font-family:monospace">test7tt.mng</span>) that uses terms of the F<sub>&lt;:</sub>
-definition of <span style="font-family:monospace">test7.ott</span>, and the result of filtering it.</p><p>Similar filtering can be performed on Coq, Isabelle, HOL, and OCaml files.</p><p>To filter files with respect to a relatively stable
+length <span class="it">n</span>+1 for <span class="it">n</span>&gt;2 into a literal sequence of length <span class="it">n</span>.</p><p>Figures&#XA0;<a href="#a56">10</a> and <a href="#a55">11</a> show a source file (<span class="tt">test7tt.mng</span>) that uses terms of the F<sub>&lt;:</sub>
+definition of <span class="tt">test7.ott</span>, and the result of filtering it.</p><p>Similar filtering can be performed on Coq, Isabelle, HOL, and OCaml files.</p><p>To filter files with respect to a relatively stable
 system definition, without having to re-process the Ott source files of
 that system definition each time, there are command-line options
 </p><pre class="verbatim">  -writesys &lt;filename&gt;                Output system definition
@@ -1736,38 +1745,38 @@ <h3 id="sec43" class="subsection">8.2&#X2003;Filtering files</h3><!--SEC END -->
 quite large. </p><blockquote class="figure"><div class="center"><hr class="floatrule"></div>
 <pre>
 We can TeX-typeset symbolic terms of the language, e.g.
-<span style="font-family:monospace">\</span>[ <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span> (<span style="font-family:monospace">\</span>X&lt;:Top. <span style="font-family:monospace">\</span>x:X.x) [Top-&gt;Top] <span style="color:#007FFF"><span style="font-family:monospace">]]</span></span><span style="font-family:monospace">\</span>]
+<span class="tt">\</span>[ <span style="color:#007FFF"><span class="tt">[[</span></span> (<span class="tt">\</span>X&lt;:Top. <span class="tt">\</span>x:X.x) [Top-&gt;Top] <span style="color:#007FFF"><span class="tt">]]</span></span><span class="tt">\</span>]
 and concrete terms
-<span style="font-family:monospace">\</span>[ <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span> <span style="color:#A51815"><span style="font-family:monospace">:concrete:</span></span> <span style="font-family:monospace">\</span>Z1&lt;:Top. <span style="font-family:monospace">\</span>x:Z1.x <span style="color:#007FFF"><span style="font-family:monospace">]]</span></span><span style="font-family:monospace">\</span>]
+<span class="tt">\</span>[ <span style="color:#007FFF"><span class="tt">[[</span></span> <span style="color:#A51815"><span class="tt">:concrete:</span></span> <span class="tt">\</span>Z1&lt;:Top. <span class="tt">\</span>x:Z1.x <span style="color:#007FFF"><span class="tt">]]</span></span><span class="tt">\</span>]
 and similarly judgements etc, e.g.
-<span style="font-family:monospace">\</span>[ <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>G |- t : T <span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="font-family:monospace">\</span>]
+<span class="tt">\</span>[ <span style="color:#007FFF"><span class="tt">[[</span></span>G |- t : T <span style="color:#007FFF"><span class="tt">]]</span></span> <span class="tt">\</span>]
    
 Here is an extract of the syntax:
 
-<span style="font-family:monospace">\</span>testSevengrammartabular<span style="font-family:monospace">{</span><span style="font-family:monospace">\</span>testSevent<span style="font-family:monospace">\</span>testSevenafterlastrule<span style="font-family:monospace">}</span>
+<span class="tt">\</span>testSevengrammartabular<span class="tt">{</span><span class="tt">\</span>testSevent<span class="tt">\</span>testSevenafterlastrule<span class="tt">}</span>
 
 and a single semantic rule:
 
-<span style="font-family:monospace">\</span>[<span style="font-family:monospace">\</span>testSevendruletinXXTwo<span style="font-family:monospace">{</span><span style="font-family:monospace">}</span><span style="font-family:monospace">\</span>]
+<span class="tt">\</span>[<span class="tt">\</span>testSevendruletinXXTwo<span class="tt">{</span><span class="tt">}</span><span class="tt">\</span>]
 
 and a judgement definition:
 
-<span style="font-family:monospace">\</span>testSevendefnSA
+<span class="tt">\</span>testSevendefnSA
 
 One can also include a &#X2018;defns&#X2019; collection of judgements, or the complete definition.
-% <span style="font-family:monospace">\</span>section<span style="font-family:monospace">{</span>Full Definition<span style="font-family:monospace">}</span>
-% <span style="font-family:monospace">\</span>testSevenmetavars<span style="font-family:monospace">\</span><span style="font-family:monospace">\</span>[0pt]
-% <span style="font-family:monospace">\</span>testSevengrammar<span style="font-family:monospace">\</span><span style="font-family:monospace">\</span>[0pt]
-% <span style="font-family:monospace">\</span>testSevendefnss
+% <span class="tt">\</span>section<span class="tt">{</span>Full Definition<span class="tt">}</span>
+% <span class="tt">\</span>testSevenmetavars<span class="tt">\</span><span class="tt">\</span>[0pt]
+% <span class="tt">\</span>testSevengrammar<span class="tt">\</span><span class="tt">\</span>[0pt]
+% <span class="tt">\</span>testSevendefnss
 %
-% <span style="font-family:monospace">\</span>testSevenall
+% <span class="tt">\</span>testSevenall
 
 
 </pre>
-<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 10: F<sub>&lt;:</sub> Extracts: LaTeX source file to be filtered (<span style="font-family:monospace">test7tt.mng</span>)<a id="a56"></a></td></tr>
+<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 10: F<sub>&lt;:</sub> Extracts: LaTeX source file to be filtered (<span class="tt">test7tt.mng</span>)<a id="a56"></a></td></tr>
 </table></div>
 <div class="center"><hr class="floatrule"></div></blockquote><blockquote class="figure"><div class="center"><hr class="floatrule"></div>
-<img src="top2007.png"><div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 11: F<sub>&lt;:</sub> Extracts: the filtered output (<span style="font-family:monospace">test7tt.tex</span>)<a id="a55"></a></td></tr>
+<img src="top2007.png"><div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 11: F<sub>&lt;:</sub> Extracts: the filtered output (<span class="tt">test7tt.tex</span>)<a id="a55"></a></td></tr>
 </table></div>
 <div class="center"><hr class="floatrule"></div></blockquote>
 <!--TOC section id="sec44" Binding specifications-->
@@ -1775,18 +1784,18 @@ <h2 id="sec44" class="section">9&#X2003;Binding specifications</h2><!--SEC END -
 
 </p><p><img src="top2008.png"></p><p>specified by the source shown in Figure&#XA0;<a href="#a47">4</a>:
 </p><pre>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">\</span> x . t      <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam     <span style="color:#007FFF"><span style="font-family:monospace">(+</span></span> <span style="color:#A51815"><span style="font-family:monospace">bind</span></span> x <span style="color:#A51815"><span style="font-family:monospace">in</span></span> t <span style="color:#007FFF"><span style="font-family:monospace">+)</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">\</span> x . t      <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> Lam     <span style="color:#007FFF"><span class="tt">(+</span></span> <span style="color:#A51815"><span class="tt">bind</span></span> x <span style="color:#A51815"><span class="tt">in</span></span> t <span style="color:#007FFF"><span class="tt">+)</span></span>
 </pre><p>
 in which a single variable binds in a single subterm.
 Realistic programming languages often have much more complex binding
-structures, e.g.&#XA0;structured patterns, multiple mutually recursive <span style="font-family:monospace">let</span> definitions,
+structures, e.g.&#XA0;structured patterns, multiple mutually recursive <span class="tt">let</span> definitions,
 comprehensions, or-patterns, and dependent record patterns.</p><p>Ott has a flexible metalanguage for specifying binding structures,
 expressive enough to cover these.
 It comprises two forms of annotation on productions.
 The first, 
 
 <img src="top2009.png">lets one specify that variables bind in nonterminals of the
-production, as in the <span style="font-family:monospace">Lam</span> production above.
+production, as in the <span class="tt">Lam</span> production above.
 Here 
 
 <img src="top2010.png">is a <em>metavariable set expression</em>,
@@ -1795,7 +1804,7 @@ <h2 id="sec44" class="section">9&#X2003;Binding specifications</h2><!--SEC END -
 
 <img src="top2011.png">of the production.
 A variable can bind in multiple nonterminals, as in the example of
-a simple recursive <span style="font-family:monospace">let</span> below.</p><p><img src="top2012.png"></p><p>More complex examples require one to collect together sets of
+a simple recursive <span class="tt">let</span> below.</p><p><img src="top2012.png"></p><p>More complex examples require one to collect together sets of
 variables. For example, the grammar below (shown in Ott source and the
 generated LaTeX) has structured patterns,
 with a 
@@ -1804,22 +1813,22 @@ <h2 id="sec44" class="section">9&#X2003;Binding specifications</h2><!--SEC END -
 <img src="top2014.png">bind in the continuation 
 
 <img src="top2015.png"></p><pre><span style="font-size:small">
-t </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> E_ </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> x                        </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> ident
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> ( t1 , t2 )              </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> pair
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> let p = t in t&#X2019;          </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> letrec      </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">(+</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">bind</span></span></span><span style="font-size:small"> binders</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">(</span></span></span><span style="font-size:small">p</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">)</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">in</span></span></span><span style="font-size:small"> t&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">+)</span></span></span><span style="font-size:small">
+t </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> E_ </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> x                        </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> ident
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> ( t1 , t2 )              </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> pair
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> let p = t in t&#X2019;          </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> letrec      </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">(+</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">bind</span></span></span><span style="font-size:small"> binders</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">(</span></span></span><span style="font-size:small">p</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">)</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">in</span></span></span><span style="font-size:small"> t&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">+)</span></span></span><span style="font-size:small">
 
 
-p </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> P_ </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> _                        </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> wildcard    </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">(+</span></span></span><span style="font-size:small"> binders </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">=</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">+)</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> x                        </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> ident       </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">(+</span></span></span><span style="font-size:small"> binders </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">=</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">+)</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> ( p1 , p2 )              </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> pair        </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">(+</span></span></span><span style="font-size:small"> binders </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">=</span></span></span><span style="font-size:small"> binders</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">(</span></span></span><span style="font-size:small">p1</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">)</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">union</span></span></span><span style="font-size:small"> binders</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">(</span></span></span><span style="font-size:small">p2</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">)</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">+)</span></span></span><span style="font-size:small">
+p </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> P_ </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> _                        </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> wildcard    </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">(+</span></span></span><span style="font-size:small"> binders </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">=</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">+)</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> x                        </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> ident       </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">(+</span></span></span><span style="font-size:small"> binders </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">=</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">+)</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> ( p1 , p2 )              </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> pair        </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">(+</span></span></span><span style="font-size:small"> binders </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">=</span></span></span><span style="font-size:small"> binders</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">(</span></span></span><span style="font-size:small">p1</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">)</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">union</span></span></span><span style="font-size:small"> binders</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">(</span></span></span><span style="font-size:small">p2</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">)</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">+)</span></span></span><span style="font-size:small">
 </span></pre><p><img src="top2016.png"></p><p>This is expressed with the second form of annotation: user-defined
 <em>auxiliary functions</em> such as the 
 binders above. This is an auxiliary function defined over the
 
 <img src="top2017.png">grammar that identifies a set of variables to be
-used in the <span style="font-family:sans-serif">bind</span> annotation on the 
+used in the <span class="sf">bind</span> annotation on the 
 <img src="top2018.png">production. There can be any number of such auxiliary functions;
 binders is not a distinguished keyword.</p><p>The syntax of a precise fragment of the binding metalanguage is given in
 Fig.&#XA0;<a href="#a13">12</a>,
@@ -1839,15 +1848,15 @@ <h2 id="sec44" class="section">9&#X2003;Binding specifications</h2><!--SEC END -
 </p><p><img src="top2020.png"></p><p>This suffices to express the binding structure of almost all the
 natural examples we have come across, including definitions of
 mutually recursive functions with multiple clauses for each, Join
-calculus definitions&#XA0;[<a href="#FGLMR96"></a>], dependent record patterns, and many others.</p>
+calculus definitions&#XA0;[<a href="#FGLMR96">FGL+96</a>], dependent record patterns, and many others.</p>
 <!--TOC section id="sec45" Generating substitution and free variable functions-->
 <h2 id="sec45" class="section">10&#X2003;Generating substitution and free variable functions</h2><!--SEC END --><p><a id="a67"></a>The tool can generate Isabelle/Coq/HOL/OCaml code for both single and multiple
 substitution functions. For example, the ML polymorphism Ott source
-of <span style="font-family:monospace">test8.ott</span> includes the following.
+of <span class="tt">test8.ott</span> includes the following.
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">substitutions</span></span>
-    <span style="color:#A51815"><span style="font-family:monospace">single</span></span>   expr value_name <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> subst  
-    <span style="color:#A51815"><span style="font-family:monospace">multiple</span></span> typexpr typvar  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> tsubst 
+  <span style="color:#A51815"><span class="tt">substitutions</span></span>
+    <span style="color:#A51815"><span class="tt">single</span></span>   expr value_name <span style="color:#007FFF"><span class="tt">::</span></span> subst  
+    <span style="color:#A51815"><span class="tt">multiple</span></span> typexpr typvar  <span style="color:#007FFF"><span class="tt">::</span></span> tsubst 
 </pre><p>
 This causes the generation of two families of substitution
 functions, one replacing a single <code class="verb">value_name</code> by a <code class="verb">expr</code>,
@@ -1856,9 +1865,9 @@ <h2 id="sec45" class="section">10&#X2003;Generating substitution and free variab
 <code class="verb">subst_expr</code> for the first and <code class="verb">tsubst_typexpr</code>,
 <code class="verb">tsubst_typscheme</code> and <code class="verb">tsubst_G</code> for the second. </p><p>The functions for substitutions declared by
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">substitutions</span></span>
-    <span style="color:#A51815"><span style="font-family:monospace">single</span></span>   this that <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> name1 
-    <span style="color:#A51815"><span style="font-family:monospace">multiple</span></span> this that <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> name2 
+  <span style="color:#A51815"><span class="tt">substitutions</span></span>
+    <span style="color:#A51815"><span class="tt">single</span></span>   this that <span style="color:#007FFF"><span class="tt">::</span></span> name1 
+    <span style="color:#A51815"><span class="tt">multiple</span></span> this that <span style="color:#007FFF"><span class="tt">::</span></span> name2 
 </pre><p>
 replaces terms of productions consisting just of a single <code class="verb">that</code> by a
 <code class="verb">this</code>.
@@ -1877,14 +1886,14 @@ <h2 id="sec45" class="section">10&#X2003;Generating substitution and free variab
 The generated functions do not substitute bound things, and recursive
 calls under binders are filtered to remove the bound things.</p><p>Similarly, the tool can generate Isabelle/Coq/HOL/OCaml to calculate the free
 variables of terms. For example, the ML polymorphism Ott source
-of <span style="font-family:monospace">test8.ott</span> includes the following.
+of <span class="tt">test8.ott</span> includes the following.
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">freevars</span></span>
-    typexpr typvar <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> ftv
+  <span style="color:#A51815"><span class="tt">freevars</span></span>
+    typexpr typvar <span style="color:#007FFF"><span class="tt">::</span></span> ftv
 </pre><p>
 This causes Isabelle functions as below to be generated, calculating
-the free <span style="font-family:monospace">typvar</span>s that occur in singleton productions in the
-<span style="font-family:monospace">typexpr</span> grammar, within terms of all types.
+the free <span class="tt">typvar</span>s that occur in singleton productions in the
+<span class="tt">typexpr</span> grammar, within terms of all types.
 </p><pre class="verbatim">  ftv_typexpr :: "typexpr =&gt; typvar list"
   ftv_typscheme :: "typscheme =&gt; typvar list"
   ftv_G :: "G =&gt; typvar list"
@@ -1892,20 +1901,20 @@ <h2 id="sec45" class="section">10&#X2003;Generating substitution and free variab
 <!--TOC section id="sec46" Locally-nameless representation-->
 <h2 id="sec46" class="section">11&#X2003;Locally-nameless representation</h2><!--SEC END --><p>The Coq backend of Ott includes experimental support for a
 locally-nameless representation (and co-finite quantification). </p><p>The user must specify which metavariables require a locally-nameless
-representation via the <span style="font-family:monospace"><span style="color:#A51815">repr-locally-nameless</span></span> hom,
+representation via the <span class="tt"><span style="color:#A51815">repr-locally-nameless</span></span> hom,
 e.g.:</p><pre>
-<span style="color:#A51815"><span style="font-family:monospace">metavar</span></span> x <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">repr-locally-nameless</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span>  term variable  <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> 
+<span style="color:#A51815"><span class="tt">metavar</span></span> x <span style="color:#007FFF"><span class="tt">::=</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">repr-locally-nameless</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span>  term variable  <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> 
 </pre><p>As usual, metavariables can be bound in productions, using the
-bindspec language, as in the <span style="font-family:monospace">lam</span> production below:
+bindspec language, as in the <span class="tt">lam</span> production below:
 </p><pre>
-<span style="color:#A51815"><span style="font-family:monospace">grammar</span></span>
-  t <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;t_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>                                         <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> term <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> x                   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Var                     <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> variable <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>         
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">\</span> x . t             <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam  <span style="color:#007FFF"><span style="font-family:monospace">(+</span></span> <span style="color:#A51815"><span style="font-family:monospace">bind</span></span> x <span style="color:#A51815"><span style="font-family:monospace">in</span></span> t <span style="color:#007FFF"><span style="font-family:monospace">+)</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> abstraction <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>      
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> t t&#X2019;                <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> App                     <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> application <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>      
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> ( t )               <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">S</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> paren   <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">coq</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> 
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">{</span> t / x <span style="font-family:monospace">}</span> t&#X2019;        <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">M</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> tsub    <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">coq</span></span> (t_subst_t <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>x  t&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>) <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-</pre><p>This definition gives rise to the datatype term below (here with option <span style="font-family:monospace">-coq_names_in_rules false</span>):
+<span style="color:#A51815"><span class="tt">grammar</span></span>
+  t <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;t_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>                                         <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> term <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+    <span style="color:#007FFF"><span class="tt">|</span></span> x                   <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> Var                     <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> variable <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>         
+    <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">\</span> x . t             <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> Lam  <span style="color:#007FFF"><span class="tt">(+</span></span> <span style="color:#A51815"><span class="tt">bind</span></span> x <span style="color:#A51815"><span class="tt">in</span></span> t <span style="color:#007FFF"><span class="tt">+)</span></span>  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> abstraction <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>      
+    <span style="color:#007FFF"><span class="tt">|</span></span> t t&#X2019;                <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> App                     <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> application <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>      
+    <span style="color:#007FFF"><span class="tt">|</span></span> ( t )               <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">S</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> paren   <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">coq</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> 
+    <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">{</span> t / x <span class="tt">}</span> t&#X2019;        <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">M</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> tsub    <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">coq</span></span> (t_subst_t <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span><span style="color:#007FFF"><span class="tt">[[</span></span>x  t&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span>) <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+</pre><p>This definition gives rise to the datatype term below (here with option <span class="tt">-coq_names_in_rules false</span>):
 </p><pre>
 Inductive term : Set := 
 | term_var_b : nat -&gt; term 
@@ -1914,43 +1923,43 @@ <h2 id="sec46" class="section">11&#X2003;Locally-nameless representation</h2><!-
 | term_app : term -&gt; term -&gt; term.
 </pre><p>Remarks:
 </p><ol class="enumerate" type=1><li class="li-enumerate">Productions containing metavariables susceptible to be bound
-(e.g., <span style="font-family:monospace">term_var</span>) give rise to two distinct constructors, one
-(<span style="font-family:monospace">term_var_b</span>) for de Bruijn indices to be used when the metavariable
-is bound, one (<span style="font-family:monospace">term_var_f</span>) for "free" variables. The type <span style="font-family:monospace">var</span>,
+(e.g., <span class="tt">term_var</span>) give rise to two distinct constructors, one
+(<span class="tt">term_var_b</span>) for de Bruijn indices to be used when the metavariable
+is bound, one (<span class="tt">term_var_f</span>) for "free" variables. The type <span class="tt">var</span>,
 together with decidable equality and several useful lemmas and
 functions, is defined in the Metatheory library.<p>In the current implementation, metavariables susceptible to be bound
-in a symbolic term (eg. the <span style="font-family:monospace">x</span> in the <span style="font-family:monospace">term_var</span>
+in a symbolic term (eg. the <span class="tt">x</span> in the <span class="tt">term_var</span>
 production) must be the only element of the production.</p></li><li class="li-enumerate">Binder metavariables are erased from productions
-(eg. <span style="font-family:monospace">term_lam</span>), as in de Bruijn representation.
-</li></ol><p>Ott automatically generates the appropriate <span style="font-family:monospace">open</span> functions
-and <span style="font-family:monospace">lc</span> predicates to test if terms are locally-closed. The
+(eg. <span class="tt">term_lam</span>), as in de Bruijn representation.
+</li></ol><p>Ott automatically generates the appropriate <span class="tt">open</span> functions
+and <span class="tt">lc</span> predicates to test if terms are locally-closed. The
 other support functions for substitutions and free-variables
-(<span style="font-family:monospace">subst</span> and <span style="font-family:monospace">fv</span>) are generated once the user declares
+(<span class="tt">subst</span> and <span class="tt">fv</span>) are generated once the user declares
 the relevant substitutions and freevars sections.</p><p>Ott automatically compiles the symbolic terms that appear in rule
 definitions into the appropriate terms in locally-nameless style. For
 instance, the typing rule for the simply-typed lambda-calculus:</p><pre>
     E,x:S |- t : T
-<span style="color:#007FFF"><span style="font-family:monospace">    ------------------</span></span> :: lambda
-    E |- <span style="font-family:monospace">\</span>x.t : S-&gt;T
+<span style="color:#007FFF"><span class="tt">    ------------------</span></span> :: lambda
+    E |- <span class="tt">\</span>x.t : S-&gt;T
 </pre><p>
 is compiled into its locally-nameless representation:
 </p><pre>
 Inductive typing : env -&gt; term -&gt; type -&gt; Prop := (* defn typing *) 
 | ... 
 | typing_lambda : forall (L:vars) (E:env) (t:term) (S T:type), 
-   (forall x, x <span style="font-family:monospace">\</span>notin L -&gt; typing (E &amp; x ~ S) (open_term_wrt_term t (term_var_f x)) T) -&gt; 
+   (forall x, x <span class="tt">\</span>notin L -&gt; typing (E &amp; x ~ S) (open_term_wrt_term t (term_var_f x)) T) -&gt; 
    typing E (term_lam t) (type_arrow S T).
 </pre><p>For that, Ott follows the algorithm below. For each rule,
 </p><ol class="enumerate" type=1><li class="li-enumerate">for each nonterminal that appears in the rule, compute the
 maximal set of binders under which it appears: for example, in the
-rule lambda above, the maximal set of binders for the nonterminal <span style="font-family:monospace">t</span>
-is the singleton <span style="font-family:monospace">x</span>, and it is empty for all the other nonterminals;
+rule lambda above, the maximal set of binders for the nonterminal <span class="tt">t</span>
+is the singleton <span class="tt">x</span>, and it is empty for all the other nonterminals;
 </li><li class="li-enumerate">for each pair nonterminal / maximal binder set collected in
 phase 1., go over all the occurrences of the nonterminal in the rule
 and open them with respect to all the variables in the maximal
 binding set except those under which this particular occurrence is
-bound. In the example, this amounts to opening the occurrence of <span style="font-family:monospace">t</span>
-in the premise with respect to the metavariable <span style="font-family:monospace">x</span>;
+bound. In the example, this amounts to opening the occurrence of <span class="tt">t</span>
+in the premise with respect to the metavariable <span class="tt">x</span>;
 </li><li class="li-enumerate">quantify using cofinite-quantification each metavariable that
 has been used to open a nonterminal;
 </li><li class="li-enumerate">add hypothesis about local-closure to guarantee the invariant
@@ -1961,34 +1970,34 @@ <h2 id="sec46" class="section">11&#X2003;Locally-nameless representation</h2><!-
 are opened and with respect to which metavariables. Consider for
 instance the CBV beta-reduction rule:
 </p><pre>
-<span style="color:#007FFF"><span style="font-family:monospace">    --------------------------</span></span>  :: ax_app
-    (<span style="font-family:monospace">\</span>x.t1) v2 --&gt;  <span style="font-family:monospace">{</span>v2/x<span style="font-family:monospace">}</span>t1
+<span style="color:#007FFF"><span class="tt">    --------------------------</span></span>  :: ax_app
+    (<span class="tt">\</span>x.t1) v2 --&gt;  <span class="tt">{</span>v2/x<span class="tt">}</span>t1
 </pre><p>
 A naive application of the algorithm described above would open the
-right hand side occurrence of <span style="font-family:monospace">t1</span> with respect to a
-cofinitely-quantified <span style="font-family:monospace">x</span>. Substitution should then be used to replace
-the occurrences of <span style="font-family:monospace">x</span> with <span style="font-family:monospace">v2</span>, resulting in the awkward term
+right hand side occurrence of <span class="tt">t1</span> with respect to a
+cofinitely-quantified <span class="tt">x</span>. Substitution should then be used to replace
+the occurrences of <span class="tt">x</span> with <span class="tt">v2</span>, resulting in the awkward term
 </p><pre>
 reduce (term_app (term_lam t1) v2) (subst_term v2 x (open_term_wrt_term t1 (term_var_f x)))
 </pre><p>Instead, an idiomatic translation of CBV beta-reduction rule would
-directly rely on the open function to substitute <span style="font-family:monospace">v2</span> for the
-bound occurrences of <span style="font-family:monospace">x</span> in <span style="font-family:monospace">t1</span>, as in:
+directly rely on the open function to substitute <span class="tt">v2</span> for the
+bound occurrences of <span class="tt">x</span> in <span class="tt">t1</span>, as in:
 </p><pre>
 reduce (term_app (term_lam t1) v2) (open_term_wrt_term t1 v2)
 </pre><p>A special syntax for production homomorphisms allow the user to specify this translation:
 </p><pre>
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">{</span> t / x <span style="font-family:monospace">}</span> t&#X2019;        <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">M</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> tsub    <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">coq</span></span> (t_subst_t <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>x t&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>) <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-</pre><p>
-In the homomorphism the nonterminal <span style="font-family:monospace">t&#X2019;</span> is referred to with
-<span style="font-family:monospace"><span style="color:#007FFF">[[</span></span><span style="font-family:monospace">x t&#X2019;</span><span style="font-family:monospace"><span style="color:#007FFF">]]</span></span> instead of the usual
-<span style="font-family:monospace"><span style="color:#007FFF">[[</span></span><span style="font-family:monospace">t&#X2019;</span><span style="font-family:monospace"><span style="color:#007FFF">]]</span></span>: the prefixed <span style="font-family:monospace">x</span> specifies
-that occurrences of <span style="font-family:monospace">t&#X2019;</span> should not be opened with respect to
-the metavariable <span style="font-family:monospace">x</span>. If this homomorphism is specified, then
-the translation of the <span style="font-family:monospace">ax_app</span> rule is exactly idiomatic Coq
-shown above.</p><p><span style="font-style:italic">Current limitations: support for single binders only, no auxfn, Coq only.</span></p><p><span style="font-style:italic">Disclaimer: to compile rule definitions, Ott applies blindly the algorithm described above. Although in most of the cases, this generates a correct and idiomatic representation of the language, some language constructs might not be faithfully translated. Please, let us know if you find one of these cases.
-</span></p><p>If Ott is invoked with the <span style="font-family:monospace">-coq_lngen</span> option, then the
+    <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">{</span> t / x <span class="tt">}</span> t&#X2019;        <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">M</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> tsub    <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">coq</span></span> (t_subst_t <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span><span style="color:#007FFF"><span class="tt">[[</span></span>x t&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span>) <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+</pre><p>
+In the homomorphism the nonterminal <span class="tt">t&#X2019;</span> is referred to with
+<span class="tt"><span style="color:#007FFF">[[</span></span><span class="tt">x t&#X2019;</span><span class="tt"><span style="color:#007FFF">]]</span></span> instead of the usual
+<span class="tt"><span style="color:#007FFF">[[</span></span><span class="tt">t&#X2019;</span><span class="tt"><span style="color:#007FFF">]]</span></span>: the prefixed <span class="tt">x</span> specifies
+that occurrences of <span class="tt">t&#X2019;</span> should not be opened with respect to
+the metavariable <span class="tt">x</span>. If this homomorphism is specified, then
+the translation of the <span class="tt">ax_app</span> rule is exactly idiomatic Coq
+shown above.</p><p><span class="it">Current limitations: support for single binders only, no auxfn, Coq only.</span></p><p><span class="it">Disclaimer: to compile rule definitions, Ott applies blindly the algorithm described above. Although in most of the cases, this generates a correct and idiomatic representation of the language, some language constructs might not be faithfully translated. Please, let us know if you find one of these cases.
+</span></p><p>If Ott is invoked with the <span class="tt">-coq_lngen</span> option, then the
 generated locally-nameless Coq code is compatible with Aydemir&#X2019;s
-<span style="font-style:italic">lngen</span> tool (<a href="http://www.cis.upenn.edu/&#XA0;sweirich/papers/lngen/"><span style="font-family:monospace">http://www.cis.upenn.edu/&#XA0;sweirich/papers/lngen/</span></a>).</p>
+<span class="it">lngen</span> tool (<a href="http://www.cis.upenn.edu/&#XA0;sweirich/papers/lngen/"><span class="tt">http://www.cis.upenn.edu/&#XA0;sweirich/papers/lngen/</span></a>).</p>
 <!--TOC section id="sec47" List forms-->
 <h2 id="sec47" class="section">12&#X2003;List forms</h2><!--SEC END --><p><a id="a61"></a>Ott has direct support for lists, both as <em>dot forms</em> such as 
 
@@ -2002,12 +2011,12 @@ <h2 id="sec47" class="section">12&#X2003;List forms</h2><!--SEC END --><p><a id=
 often be described with this list syntax in conjunction with type and
 metaproduction homs to specify the proof assistant representation.
 When using list forms, one usually also wants to add a list-of-formula
-production to the <span style="color:#A51815"><span style="font-family:monospace">formula</span></span> grammar, e.g. (as in
+production to the <span style="color:#A51815"><span class="tt">formula</span></span> grammar, e.g. (as in
 <code class="verb">test17.10.ott</code>):
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">formula</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> formula_ <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>  
-   <span style="color:#007FFF"><span style="font-family:monospace">|</span></span>  judgement                       <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> judgement
-   <span style="color:#007FFF"><span style="font-family:monospace">|</span></span>  formula1 <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> formulan            <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> dots
+  <span style="color:#A51815"><span class="tt">formula</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> formula_ <span style="color:#007FFF"><span class="tt">::=</span></span>  
+   <span style="color:#007FFF"><span class="tt">|</span></span>  judgement                       <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> judgement
+   <span style="color:#007FFF"><span class="tt">|</span></span>  formula1 <span style="color:#007FFF"><span class="tt">..</span></span> formulan            <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> dots
 </pre><p>
 The proof assistant code generation for such a production (which must
 be named <code class="verb">formula_dots</code>) is special-cased to a list conjunction.</p><blockquote class="figure"><div class="center"><hr class="floatrule"></div>
@@ -2015,11 +2024,11 @@ <h2 id="sec47" class="section">12&#X2003;List forms</h2><!--SEC END --><p><a id=
  E |- e1 : t1 ... E |- en : tn
  E |- field_name1 : t-&gt;t1 ... E |- field_namen : t-&gt;tn
  t = (t1&#X2019;, ..., tl&#X2019;) typeconstr_name
- E |- typeconstr_name gives typeconstr_name:kind </span><span style="font-size:small"><span style="font-family:monospace">{</span></span><span style="font-size:small">field_name1&#X2019;; ...; field_namem&#X2019;</span><span style="font-size:small"><span style="font-family:monospace">}</span></span><span style="font-size:small">
+ E |- typeconstr_name gives typeconstr_name:kind </span><span style="font-size:small"><span class="tt">{</span></span><span style="font-size:small">field_name1&#X2019;; ...; field_namem&#X2019;</span><span style="font-size:small"><span class="tt">}</span></span><span style="font-size:small">
  field_name1...field_namen PERMUTES field_name1&#X2019;...field_namem&#X2019;
  length (e1)...(en)&gt;=1
  -------------------------------------------------------------------------- :: record_constr
- E |- </span><span style="font-size:small"><span style="font-family:monospace">{</span></span><span style="font-size:small">field_name1=e1; ...; field_namen=en</span><span style="font-size:small"><span style="font-family:monospace">}</span></span><span style="font-size:small"> : t
+ E |- </span><span style="font-size:small"><span class="tt">{</span></span><span style="font-size:small">field_name1=e1; ...; field_namen=en</span><span style="font-size:small"><span class="tt">}</span></span><span style="font-size:small"> : t
 </span></pre><div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" ><span style="font-size:small">Figure 13: A sample OCaml semantic rule, in LaTeX and Ott
 source forms</span><a id="a63"></a></td></tr>
 </table></div><div class="center"><hr class="floatrule"></div></blockquote>
@@ -2029,27 +2038,27 @@ <h3 id="sec48" class="subsection">12.1&#X2003;List dot forms</h3><!--SEC END -->
 patterns are shown below, in both Ott source and LaTeX, taken
 from our F<sub>&lt;:</sub> example.
 </p><pre>
-T<span style="color:#007FFF"><span style="font-family:monospace">,</span></span> S<span style="color:#007FFF"><span style="font-family:monospace">,</span></span> U <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;T_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>                                               <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> type  <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">{</span> l1 : T1 , <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> , ln : Tn <span style="font-family:monospace">}</span>      <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Rec                       <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> record <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>           
+T<span style="color:#007FFF"><span class="tt">,</span></span> S<span style="color:#007FFF"><span class="tt">,</span></span> U <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;T_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>                                               <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> type  <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">{</span> l1 : T1 , <span style="color:#007FFF"><span class="tt">..</span></span> , ln : Tn <span class="tt">}</span>      <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> Rec                       <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> record <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>           
 
-t <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;t_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>                                                     <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span>  term  <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">{</span> l1 = t1 ,  <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> , ln = tn <span style="font-family:monospace">}</span>     <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Rec                       <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> record <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> let p = t in t&#X2019;                 <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Let <span style="color:#007FFF"><span style="font-family:monospace">(+</span></span> <span style="color:#A51815"><span style="font-family:monospace">bind</span></span> b<span style="color:#007FFF"><span style="font-family:monospace">(</span></span>p<span style="color:#007FFF"><span style="font-family:monospace">)</span></span> <span style="color:#A51815"><span style="font-family:monospace">in</span></span> t&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">+)</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> pattern binding<span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+t <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;t_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>                                                     <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span>  term  <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">{</span> l1 = t1 ,  <span style="color:#007FFF"><span class="tt">..</span></span> , ln = tn <span class="tt">}</span>     <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> Rec                       <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> record <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> let p = t in t&#X2019;                 <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> Let <span style="color:#007FFF"><span class="tt">(+</span></span> <span style="color:#A51815"><span class="tt">bind</span></span> b<span style="color:#007FFF"><span class="tt">(</span></span>p<span style="color:#007FFF"><span class="tt">)</span></span> <span style="color:#A51815"><span class="tt">in</span></span> t&#X2019; <span style="color:#007FFF"><span class="tt">+)</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> pattern binding<span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 
-p <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;P_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>                                                     <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span>  pattern <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> x : T                           <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Var <span style="color:#007FFF"><span style="font-family:monospace">(+</span></span> b <span style="color:#007FFF"><span style="font-family:monospace">=</span></span> x  <span style="color:#007FFF"><span style="font-family:monospace">+)</span></span>          <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> variable pattern <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">{</span> l1 = p1 , <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> , ln = pn <span style="font-family:monospace">}</span>      <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Rec <span style="color:#007FFF"><span style="font-family:monospace">(+</span></span> b <span style="color:#007FFF"><span style="font-family:monospace">=</span></span> b<span style="color:#007FFF"><span style="font-family:monospace">(</span></span>p1 <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> pn<span style="color:#007FFF"><span style="font-family:monospace">)</span></span> <span style="color:#007FFF"><span style="font-family:monospace">+)</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span>  record pattern  <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+p <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;P_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>                                                     <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span>  pattern <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> x : T                           <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> Var <span style="color:#007FFF"><span class="tt">(+</span></span> b <span style="color:#007FFF"><span class="tt">=</span></span> x  <span style="color:#007FFF"><span class="tt">+)</span></span>          <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> variable pattern <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">{</span> l1 = p1 , <span style="color:#007FFF"><span class="tt">..</span></span> , ln = pn <span class="tt">}</span>      <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> Rec <span style="color:#007FFF"><span class="tt">(+</span></span> b <span style="color:#007FFF"><span class="tt">=</span></span> b<span style="color:#007FFF"><span class="tt">(</span></span>p1 <span style="color:#007FFF"><span class="tt">..</span></span> pn<span style="color:#007FFF"><span class="tt">)</span></span> <span style="color:#007FFF"><span class="tt">+)</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span>  record pattern  <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 
 </pre><p>
 <img src="top2024.png"></p><p>Dot forms can be used in symbolic terms in semantic rules:</p><p>
 <img src="top2025.png"></p><p>Individually indexed projections from dot forms can be mentioned, eg
-the <span style="font-style:italic">l</span><sub><span style="font-style:italic">j</span></sub> below:</p><p>
+the <span class="it">l</span><sub><span class="it">j</span></sub> below:</p><p>
 <img src="top2026.png"></p><p>Symbolic terms can also include concatenations of two dot forms with a
 singleton in between:</p><p>
-<img src="top2027.png"></p><p>Multiple dot forms within the same semantic rule can share bounds (e.g.&#XA0;1..<span style="font-style:italic">m</span>):</p><p>
+<img src="top2027.png"></p><p>Multiple dot forms within the same semantic rule can share bounds (e.g.&#XA0;1..<span class="it">m</span>):</p><p>
 <img src="top2028.png"></p><p>In more detail, productions can have dot tokens interspersed between the elements. 
-Dot tokens consist of two, three or four consecutive dots (<span style="color:#007FFF"><span style="font-family:monospace">..</span></span>,
-<span style="color:#007FFF"><span style="font-family:monospace">...</span></span>, or <span style="color:#007FFF"><span style="font-family:monospace">....</span></span>), indicating lists with minimum lengths 0,
+Dot tokens consist of two, three or four consecutive dots (<span style="color:#007FFF"><span class="tt">..</span></span>,
+<span style="color:#007FFF"><span class="tt">...</span></span>, or <span style="color:#007FFF"><span class="tt">....</span></span>), indicating lists with minimum lengths 0,
 1, and 2 respectively (these length minimums are respected
 only when parsing concrete lists; they are not present in Isabelle/Coq/HOL
 output). 
@@ -2057,9 +2066,9 @@ <h3 id="sec48" class="subsection">12.1&#X2003;List dot forms</h3><!--SEC END -->
 the dots that are identical modulo anti-unification of some
 index. Optionally, there may also be a single terminal on either side
 of the dot token, separating instances of the repeated unit.
-For example, in the <span style="font-family:monospace">test7.ott</span> production
+For example, in the <span class="tt">test7.ott</span> production
 </p><pre>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">{</span> l1 = t1 ,  <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> , ln = tn <span style="font-family:monospace">}</span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Rec                     
+  <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">{</span> l1 = t1 ,  <span style="color:#007FFF"><span class="tt">..</span></span> , ln = tn <span class="tt">}</span>  <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> Rec                     
 </pre><p>
 there is such a terminal (the &#X2018;<code class="verb">,</code>&#X2019;). The tool identifies
 that <code class="verb">l1 = t1</code> and <code class="verb">ln = tn</code> can be anti-unified as 
@@ -2071,8 +2080,8 @@ <h3 id="sec48" class="subsection">12.1&#X2003;List dot forms</h3><!--SEC END -->
 a dot form of nonterminals; or an auxiliary function applied to a dot
 form
 of nonterminals (e.g.&#XA0;the
-b(<span style="font-style:italic">p</span><sub>1</sub>..<span style="font-style:italic">p</span><sub><span style="font-style:italic">n</span></sub>) above).
-Dot forms on the right of a <span style="color:#A51815"><span style="font-family:monospace">bind</span></span> are not currently supported.</p><p>LaTeX homomorphisms should not refer to dot forms, as either an error
+b(<span class="it">p</span><sub>1</sub>..<span class="it">p</span><sub><span class="it">n</span></sub>) above).
+Dot forms on the right of a <span style="color:#A51815"><span class="tt">bind</span></span> are not currently supported.</p><p>LaTeX homomorphisms should not refer to dot forms, as either an error
 or bad output will be generated. (For LaTeX, there should really be
 some means to specify
 a homomorphism for the repeated expression, and also data on how any
@@ -2085,14 +2094,14 @@ <h3 id="sec49" class="subsection">12.2&#X2003;List comprehension forms</h3><!--S
 or a lower and upper bound. For example, in a symbolic
 term, instead of the dot form 
 </p><pre><span style="font-size:small">
-  G |- t1:T1  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">..</span></span></span><span style="font-size:small">  G |- tn:Tn
+  G |- t1:T1  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">..</span></span></span><span style="font-size:small">  G |- tn:Tn
  </span></pre><p><span style="font-size:small">
 </span>
 one can write any of the following
 </p><pre><span style="font-size:small">
-   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;/</span></span></span><span style="font-size:small"> G |- ti:Ti </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> i           </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">/&gt;</span></span></span><span style="font-size:small">
-   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;/</span></span></span><span style="font-size:small"> G |- ti:Ti </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">IN</span></span></span><span style="font-size:small"> n      </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">/&gt;</span></span></span><span style="font-size:small">
-   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;/</span></span></span><span style="font-size:small"> G |- ti:Ti </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">IN</span></span></span><span style="font-size:small"> 1 </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">..</span></span></span><span style="font-size:small"> n </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">/&gt;</span></span></span><span style="font-size:small">
+   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;/</span></span></span><span style="font-size:small"> G |- ti:Ti </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> i           </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">/&gt;</span></span></span><span style="font-size:small">
+   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;/</span></span></span><span style="font-size:small"> G |- ti:Ti </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">IN</span></span></span><span style="font-size:small"> n      </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">/&gt;</span></span></span><span style="font-size:small">
+   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;/</span></span></span><span style="font-size:small"> G |- ti:Ti </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">IN</span></span></span><span style="font-size:small"> 1 </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">..</span></span></span><span style="font-size:small"> n </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">/&gt;</span></span></span><span style="font-size:small">
  </span></pre><p><span style="font-size:small">
 </span>
 Similar comprehensions can be used in productions, for example lines
@@ -2100,13 +2109,13 @@ <h3 id="sec49" class="subsection">12.2&#X2003;List comprehension forms</h3><!--S
 terminal to be used as a separator in concrete lists, as in lines 5&#X2013;7 below.
 (These examples are taken from <code class="verb">test17.10.ott</code>.)
 </p><pre><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> l1 = t1 ,  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">..</span></span></span><span style="font-size:small"> , ln = tn </span><span style="font-size:small">           </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Rec              </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> dots </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;/</span></span></span><span style="font-size:small"> li = ti </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> i           </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small">      </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Rec_comp_none    </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> comp </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;/</span></span></span><span style="font-size:small"> li = ti </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">IN</span></span></span><span style="font-size:small"> n      </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small">      </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Rec_comp_u_none  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> compu </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> 
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;/</span></span></span><span style="font-size:small"> li = ti </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">IN</span></span></span><span style="font-size:small"> 1 </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">..</span></span></span><span style="font-size:small"> n </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small">      </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Rec_comp_lu_none </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> complu </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">  
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;/</span></span></span><span style="font-size:small"> li = ti </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> , </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> i           </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Rec_comp_some    </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> comp with terminal </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;/</span></span></span><span style="font-size:small"> li = ti </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> , </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">IN</span></span></span><span style="font-size:small"> n      </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Rec_comp_u_some  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> compu with terminal </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> 
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;/</span></span></span><span style="font-size:small"> li = ti </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> , </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">IN</span></span></span><span style="font-size:small"> 1 </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">..</span></span></span><span style="font-size:small"> n </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Rec_comp_lu_some </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> complu with terminal </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">  
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> l1 = t1 ,  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">..</span></span></span><span style="font-size:small"> , ln = tn </span><span style="font-size:small">           </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Rec              </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> dots </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;/</span></span></span><span style="font-size:small"> li = ti </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> i           </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small">      </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Rec_comp_none    </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> comp </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;/</span></span></span><span style="font-size:small"> li = ti </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">IN</span></span></span><span style="font-size:small"> n      </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small">      </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Rec_comp_u_none  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> compu </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> 
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;/</span></span></span><span style="font-size:small"> li = ti </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">IN</span></span></span><span style="font-size:small"> 1 </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">..</span></span></span><span style="font-size:small"> n </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small">      </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Rec_comp_lu_none </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> complu </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">  
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;/</span></span></span><span style="font-size:small"> li = ti </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> , </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> i           </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Rec_comp_some    </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> comp with terminal </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;/</span></span></span><span style="font-size:small"> li = ti </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> , </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">IN</span></span></span><span style="font-size:small"> n      </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Rec_comp_u_some  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> compu with terminal </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> 
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;/</span></span></span><span style="font-size:small"> li = ti </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> , </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">IN</span></span></span><span style="font-size:small"> 1 </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">..</span></span></span><span style="font-size:small"> n </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Rec_comp_lu_some </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> complu with terminal </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">  
  </span></pre><p><span style="font-size:small">
 </span>
 In Coq, HOL or Isabelle output, list dot forms and the
@@ -2114,32 +2123,32 @@ <h3 id="sec49" class="subsection">12.2&#X2003;List comprehension forms</h3><!--S
 In LaTeX output, comprension forms are default-typeset with overbars. 
 For example, the rules below
 </p><pre><span style="font-size:small">
- G|- t:</span><span style="font-size:small">l1:T1,</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">..</span></span></span><span style="font-size:small">,ln:Tn</span><span style="font-size:small">
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace"> ----------------------- :: </span></span></span><span style="font-size:small">Proj_dotform
+ G|- t:</span><span style="font-size:small">l1:T1,</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">..</span></span></span><span style="font-size:small">,ln:Tn</span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt"> ----------------------- :: </span></span></span><span style="font-size:small">Proj_dotform
  G|- t.lj : Tj
 
- G|- t: </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;/</span></span></span><span style="font-size:small"> li:Ti </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> i</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small">
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace"> ---------------------------------- ::</span></span></span><span style="font-size:small"> Proj_comp
+ G|- t: </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;/</span></span></span><span style="font-size:small"> li:Ti </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> i</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt"> ---------------------------------- ::</span></span></span><span style="font-size:small"> Proj_comp
  G|- t.lj : Tj
 
- G|- t: </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;/</span></span></span><span style="font-size:small"> li:Ti </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">IN</span></span></span><span style="font-size:small"> n</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small">
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace"> ---------------------------------- ::</span></span></span><span style="font-size:small"> Proj_comp_u
+ G|- t: </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;/</span></span></span><span style="font-size:small"> li:Ti </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">IN</span></span></span><span style="font-size:small"> n</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt"> ---------------------------------- ::</span></span></span><span style="font-size:small"> Proj_comp_u
  G|- t.lj : Tj
 
- G|- t: </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;/</span></span></span><span style="font-size:small"> li:Ti </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">IN</span></span></span><span style="font-size:small"> 1</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">..</span></span></span><span style="font-size:small">n</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small">
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace"> ---------------------------------- ::</span></span></span><span style="font-size:small"> Proj_comp_lu
+ G|- t: </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;/</span></span></span><span style="font-size:small"> li:Ti </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">IN</span></span></span><span style="font-size:small"> 1</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">..</span></span></span><span style="font-size:small">n</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt"> ---------------------------------- ::</span></span></span><span style="font-size:small"> Proj_comp_lu
  G|- t.lj : Tj
  </span></pre><p><span style="font-size:small">
 </span>
 are typeset as follows.</p><p>
-<img src="top2029.png"></p><p>Upper bounds of the form <span style="font-style:italic">n</span>&#X2212;1 are also permitted, e.g. with
+<img src="top2029.png"></p><p>Upper bounds of the form <span class="it">n</span>&#X2212;1 are also permitted, e.g. with
 </p><pre><span style="font-size:small">
- G|- t:</span><span style="font-size:small">l0:T0,</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">..</span></span></span><span style="font-size:small">,ln-1:Tn-1</span><span style="font-size:small">
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace"> ----------------------- ::</span></span></span><span style="font-size:small"> Proj_dotform_minus
+ G|- t:</span><span style="font-size:small">l0:T0,</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">..</span></span></span><span style="font-size:small">,ln-1:Tn-1</span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt"> ----------------------- ::</span></span></span><span style="font-size:small"> Proj_dotform_minus
  G|- t.lj : Tj
 
- G|- t: </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">&lt;/</span></span></span><span style="font-size:small"> li:Ti </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">IN</span></span></span><span style="font-size:small"> 0</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">..</span></span></span><span style="font-size:small">n-1</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small">
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace"> ---------------------------------- ::</span></span></span><span style="font-size:small"> Proj_comp_lu_minus
+ G|- t: </span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">&lt;/</span></span></span><span style="font-size:small"> li:Ti </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">//</span></span></span><span style="font-size:small"> i </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">IN</span></span></span><span style="font-size:small"> 0</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">..</span></span></span><span style="font-size:small">n-1</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">/&gt;</span></span></span><span style="font-size:small"> </span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt"> ---------------------------------- ::</span></span></span><span style="font-size:small"> Proj_comp_lu_minus
  G|- t.lj : Tj
  </span></pre><p><span style="font-size:small">
 </span>
@@ -2152,7 +2161,7 @@ <h3 id="sec49" class="subsection">12.2&#X2003;List comprehension forms</h3><!--S
 with the same bounds. Moreover, in a production, a list form in a bindspec or
 homomorphism must be in the same style and with the same bounds as the
 corresponding list form in the elements of the production. </p><p>The comprehension form without an upper bound, 
-e.g.&#XA0;<span style="font-family:monospace"><span style="color:#007FFF">&lt;/</span></span><span style="font-family:monospace"> G |- ti:Ti </span><span style="font-family:monospace"><span style="color:#007FFF">//</span></span><span style="font-family:monospace"> i </span><span style="font-family:monospace"><span style="color:#007FFF">/&gt;</span></span>, 
+e.g.&#XA0;<span class="tt"><span style="color:#007FFF">&lt;/</span></span><span class="tt"> G |- ti:Ti </span><span class="tt"><span style="color:#007FFF">//</span></span><span class="tt"> i </span><span class="tt"><span style="color:#007FFF">/&gt;</span></span>, 
 typeset as 
 <img src="top2031.png">is not standard
 notation, but is often very useful. Many semantic rules involve lists
@@ -2161,14 +2170,14 @@ <h3 id="sec49" class="subsection">12.2&#X2003;List comprehension forms</h3><!--S
 <img src="top2033.png">here, but do not need to introduce an
 identifier for that length; omitting it keeps them concise.</p><p>The default visual style for typesetting list comprehensions can be
 overridden by redefining the LaTeX commands <code class="verb">\ottcomp</code>,
-<code class="verb">\ottcompu</code>, and <code class="verb">\ottcomplu</code> in an <span style="color:#A51815"><span style="font-family:monospace">embed</span></span> section, as
+<code class="verb">\ottcompu</code>, and <code class="verb">\ottcomplu</code> in an <span style="color:#A51815"><span class="tt">embed</span></span> section, as
 in Section&#XA0;<a href="#a64">4.3</a>.</p><p>In some cases one could make the typeset notation even less noisy, by
-either omitting the superscript <span style="font-style:italic">i</span> or omitting both the superscript <span style="font-style:italic">i</span> and
-the subscript <span style="font-style:italic">i</span>&#X2019;s on <span style="font-style:italic">t</span> and <span style="font-style:italic">T</span>. The first is unambiguous if there
+either omitting the superscript <span class="it">i</span> or omitting both the superscript <span class="it">i</span> and
+the subscript <span class="it">i</span>&#X2019;s on <span class="it">t</span> and <span class="it">T</span>. The first is unambiguous if there
 is at most one index on each element in the comprehension; the second
 if all the elements are indexed by the same thing (not the case for
 this example, but common for comprehensions of single elements,
-e.g. <code class="verb">&lt;&lt; Ti // i&gt;&gt;</code> for <span style="text-decoration:overline"><span style="font-style:italic">T</span></span>). It is arguable that that
+e.g. <code class="verb">&lt;&lt; Ti // i&gt;&gt;</code> for <span style="text-decoration:overline"><span class="it">T</span></span>). It is arguable that that
 should be automated in future Ott releases, though it would bring the typeset and ASCII
 versions out of step.</p><p>List comprehension forms can also be used in bindspecs and in
 homomorphisms. </p>
@@ -2179,11 +2188,11 @@ <h4 id="sec51" class="subsubsection">12.3.1&#X2003;Types</h4><!--SEC END --><p>
 We have to choose proof assistant representations for productions involving list
 forms. For example, for a language with records one might write 
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">metavar</span></span> label<span style="color:#007FFF"><span style="font-family:monospace">,</span></span> l <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">hol</span></span> string <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">coq</span></span> nat <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#A51815"><span style="font-family:monospace">indexvar</span></span> index<span style="color:#007FFF"><span style="font-family:monospace">,</span></span> n <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">hol</span></span> num <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">coq</span></span> nat <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> 
-  <span style="color:#A51815"><span style="font-family:monospace">grammar</span></span>
-  term<span style="color:#007FFF"><span style="font-family:monospace">,</span></span> t <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;t_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">{</span> l1 = t1 ,  <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> , ln = tn <span style="font-family:monospace">}</span>      <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> record
+  <span style="color:#A51815"><span class="tt">metavar</span></span> label<span style="color:#007FFF"><span class="tt">,</span></span> l <span style="color:#007FFF"><span class="tt">::=</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">hol</span></span> string <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">coq</span></span> nat <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#A51815"><span class="tt">indexvar</span></span> index<span style="color:#007FFF"><span class="tt">,</span></span> n <span style="color:#007FFF"><span class="tt">::=</span></span>  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">hol</span></span> num <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">coq</span></span> nat <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> 
+  <span style="color:#A51815"><span class="tt">grammar</span></span>
+  term<span style="color:#007FFF"><span class="tt">,</span></span> t <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;t_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>
+    <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">{</span> l1 = t1 ,  <span style="color:#007FFF"><span class="tt">..</span></span> , ln = tn <span class="tt">}</span>      <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> record
 </pre><p>
 
 In HOL and Isabelle we represent these simply with contructors whose
@@ -2203,7 +2212,7 @@ <h4 id="sec51" class="subsubsection">12.3.1&#X2003;Types</h4><!--SEC END --><p>
 synthesise an additional type for each type of lists-of-tuples that
 arises in the grammar. 
 In the example, we need a type of lists of
-pairs of a <span style="font-family:monospace">label</span> and a <span style="font-family:monospace">t</span>:
+pairs of a <span class="tt">label</span> and a <span class="tt">t</span>:
 </p><pre class="verbatim"><span style="font-size:small">Inductive 
 list_label_t : Set := 
    Nil_list_label_t : list_label_t
@@ -2221,8 +2230,8 @@ <h4 id="sec52" class="subsubsection">12.3.2&#X2003;Terms (in inductive definitio
 Supporting list forms in the rules of an inductive definition requires some additional analysis. For example,
 consider the record typing rule below.</p><p><img src="top2034.png">
 We analyse the symbolic terms in the premises and conclusion to
-identify lists of nonterminals and metavariables with the same bounds &#X2014; here <span style="font-style:italic">t</span><sub>0</sub> .. <span style="font-style:italic">t</span><sub><span style="font-style:italic">n</span>&#X2212;1</sub>, <span style="font-style:italic">T</span><sub>0</sub> .. <span style="font-style:italic">T</span><sub><span style="font-style:italic">n</span>&#X2212;1</sub>, and <span style="font-style:italic">l</span><sub>0</sub> .. <span style="font-style:italic">l</span><sub><span style="font-style:italic">n</span>&#X2212;1</sub>
-all have bounds 0..<span style="font-style:italic">n</span>&#X2212;1.
+identify lists of nonterminals and metavariables with the same bounds &#X2014; here <span class="it">t</span><sub>0</sub> .. <span class="it">t</span><sub><span class="it">n</span>&#X2212;1</sub>, <span class="it">T</span><sub>0</sub> .. <span class="it">T</span><sub><span class="it">n</span>&#X2212;1</sub>, and <span class="it">l</span><sub>0</sub> .. <span class="it">l</span><sub><span class="it">n</span>&#X2212;1</sub>
+all have bounds 0..<span class="it">n</span>&#X2212;1.
 To make the fact that they have the same length immediate in the
 generated code, we introduce a single proof assistant
 variable for each such collection, with appropriate projections and
@@ -2245,7 +2254,7 @@ <h4 id="sec52" class="subsubsection">12.3.2&#X2003;Terms (in inductive definitio
 For example, the rule
 </p><p><img src="top2035.png">
 gives rise to HOL code as below &#X2014; note the list-lifted usage of the
-<code class="verb">is_v_of_t</code> predicate, and the list appends (<span style="font-family:monospace">++</span>) in the conclusion.
+<code class="verb">is_v_of_t</code> predicate, and the list appends (<span class="tt">++</span>) in the conclusion.
 </p><pre class="verbatim"><span style="font-size:small">(* reduce_Rec *)  !(l'_t'_list:(label#t) list) 
        (l_v_list:(label#t) list) (l:label) (t:t) (t':t) . 
 ((EVERY (\(l_,v_). is_v_of_t v_) l_v_list) /\
@@ -2254,10 +2263,10 @@ <h4 id="sec52" class="subsubsection">12.3.2&#X2003;Terms (in inductive definitio
 (( reduce (t_Rec (l_v_list ++ [(l,t)] ++ l'_t'_list)) 
           (t_Rec (l_v_list ++ [(l,t')] ++ l'_t'_list))))
 </span></pre><p><span style="font-size:small">
-</span>For the <span style="font-family:monospace">Proj</span> typing rule </p><p><img src="top2036.png">
+</span>For the <span class="tt">Proj</span> typing rule </p><p><img src="top2036.png">
 we need a specific projection (the
 HOL <code class="verb">EL</code>) to
-pick out the <span style="font-style:italic">j</span>&#X2019;th element:
+pick out the <span class="it">j</span>&#X2019;th element:
 </p><pre class="verbatim"><span style="font-size:small">(* Ty_Proj *)  !(l_Typ_list:(label#Typ) list) 
        (j:index) (G:G) (t:t) . 
 ((( Ty G t (T_Rec (l_Typ_list)) )))
@@ -2306,29 +2315,29 @@ <h4 id="sec52" class="subsubsection">12.3.2&#X2003;Terms (in inductive definitio
 <!--TOC subsubsection id="sec53" List forms in homomorphisms-->
 <h4 id="sec53" class="subsubsection">12.3.3&#X2003;List forms in homomorphisms</h4><!--SEC END --><p>Proof assistant homomorphisms in productions can refer to dot-form
 metavariables and nonterminals. For example, the second production
-below (taken from <code class="verb">test17.9</code>) mentions <span style="font-family:monospace"><span style="color:#007FFF">[[</span></span><span style="font-family:monospace">x1 t1 </span><span style="font-family:monospace"><span style="color:#007FFF">...</span></span><span style="font-family:monospace"> xn tn</span><span style="font-family:monospace"><span style="color:#007FFF">]]</span></span> in the <span style="color:#A51815"><span style="font-family:monospace">isa</span></span>
+below (taken from <code class="verb">test17.9</code>) mentions <span class="tt"><span style="color:#007FFF">[[</span></span><span class="tt">x1 t1 </span><span class="tt"><span style="color:#007FFF">...</span></span><span class="tt"> xn tn</span><span class="tt"><span style="color:#007FFF">]]</span></span> in the <span style="color:#A51815"><span class="tt">isa</span></span>
 homomorphism. This must exactly match the dot form in the production
 except that all terminals must be omitted &#X2014; the metavariables and
 nonterminals must occur in the same order as in the production, and
 the bounds must be the same. </p><pre>
-    E <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;E_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> ( ident * t ) list  <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-      <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> &lt; x1 : t1 , <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> , xn : tn &gt; <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> 2  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span>  List.rev <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>x1 t1 <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> xn tn<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-    <span style="color:#A51815"><span style="font-family:monospace">formula</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> formula_ <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>          
-      <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> judgement              <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> judgement
-      <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> formula1 <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> formulan   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> dots
+    E <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;E_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> ( ident * t ) list  <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+      <span style="color:#007FFF"><span class="tt">|</span></span> &lt; x1 : t1 , <span style="color:#007FFF"><span class="tt">..</span></span> , xn : tn &gt; <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> 2  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span>  List.rev <span style="color:#007FFF"><span class="tt">[[</span></span>x1 t1 <span style="color:#007FFF"><span class="tt">..</span></span> xn tn<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+    <span style="color:#A51815"><span class="tt">formula</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> formula_ <span style="color:#007FFF"><span class="tt">::=</span></span>          
+      <span style="color:#007FFF"><span class="tt">|</span></span> judgement              <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> judgement
+      <span style="color:#007FFF"><span class="tt">|</span></span> formula1 <span style="color:#007FFF"><span class="tt">..</span></span> formulan   <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> dots
 </pre><p>
 The generated Isabelle code for symbolic
 terms mentioning this production will involve a list of pairs. For
 example, the rules
 </p><pre>
-<span style="color:#A51815"><span style="font-family:monospace">defn</span></span>
-|- E  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Eok <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Eok_ <span style="color:#A51815"><span style="font-family:monospace">by</span></span>
+<span style="color:#A51815"><span class="tt">defn</span></span>
+|- E  <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> Eok <span style="color:#007FFF"><span class="tt">::</span></span> Eok_ <span style="color:#A51815"><span class="tt">by</span></span>
 
-<span style="color:#007FFF"><span style="font-family:monospace">----------------------------</span></span> :: 2
+<span style="color:#007FFF"><span class="tt">----------------------------</span></span> :: 2
 |- &lt;x1:t1,..,xn:tn&gt; 
 
 |- t1:K1  .. |- tn:Kn
-<span style="color:#007FFF"><span style="font-family:monospace">----------------------------</span></span> :: 3
+<span style="color:#007FFF"><span class="tt">----------------------------</span></span> :: 3
 |- &lt;x1:t1,..,xn:tn&gt; 
 </pre><p>
 generate
@@ -2352,90 +2361,90 @@ <h4 id="sec53" class="subsubsection">12.3.3&#X2003;List forms in homomorphisms</
 <!--TOC section id="sec54" Subrules-->
 <h2 id="sec54" class="section">13&#X2003;Subrules</h2><!--SEC END --><p><a id="a14"></a>Subrule declarations have the form
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">subrules</span></span>
-    nt1 <span style="color:#007FFF"><span style="font-family:monospace">&lt;::</span></span> nt2
+  <span style="color:#A51815"><span class="tt">subrules</span></span>
+    nt1 <span style="color:#007FFF"><span class="tt">&lt;::</span></span> nt2
 </pre><p>
-where <span style="font-family:monospace">nt1</span> and <span style="font-family:monospace">nt2</span> are nonterminal roots. </p><p>Subrules can be chained, i.e.&#XA0;there can be a pair of
-subrule declarations <span style="font-family:monospace">nt1 </span><span style="font-family:monospace"><span style="color:#007FFF">&lt;::</span></span><span style="font-family:monospace"> nt2</span> and <span style="font-family:monospace">nt2 </span><span style="font-family:monospace"><span style="color:#007FFF">&lt;::</span></span><span style="font-family:monospace"> nt3</span>,
+where <span class="tt">nt1</span> and <span class="tt">nt2</span> are nonterminal roots. </p><p>Subrules can be chained, i.e.&#XA0;there can be a pair of
+subrule declarations <span class="tt">nt1 </span><span class="tt"><span style="color:#007FFF">&lt;::</span></span><span class="tt"> nt2</span> and <span class="tt">nt2 </span><span class="tt"><span style="color:#007FFF">&lt;::</span></span><span class="tt"> nt3</span>,
 and they can form a directed acyclic graph, e.g.&#XA0;with 
-<span style="font-family:monospace">nt0 </span><span style="font-family:monospace"><span style="color:#007FFF">&lt;::</span></span><span style="font-family:monospace"> nt1</span>, <span style="font-family:monospace">nt0 </span><span style="font-family:monospace"><span style="color:#007FFF">&lt;::</span></span><span style="font-family:monospace"> nt2</span>,
-<span style="font-family:monospace">nt1 </span><span style="font-family:monospace"><span style="color:#007FFF">&lt;::</span></span><span style="font-family:monospace"> nt3</span>, and <span style="font-family:monospace">nt2 </span><span style="font-family:monospace"><span style="color:#007FFF">&lt;::</span></span><span style="font-family:monospace"> nt3</span>. However, there cannot be
+<span class="tt">nt0 </span><span class="tt"><span style="color:#007FFF">&lt;::</span></span><span class="tt"> nt1</span>, <span class="tt">nt0 </span><span class="tt"><span style="color:#007FFF">&lt;::</span></span><span class="tt"> nt2</span>,
+<span class="tt">nt1 </span><span class="tt"><span style="color:#007FFF">&lt;::</span></span><span class="tt"> nt3</span>, and <span class="tt">nt2 </span><span class="tt"><span style="color:#007FFF">&lt;::</span></span><span class="tt"> nt3</span>. However, there cannot be
 cycles, or nonterminal roots for which there are multiple upper bounds. 
 Subrule declarations should not involve nonterminal roots for which
 proof-assistant type homs are specified. </p><p>We support the case in which the upper rule is also
 non-free, i.e.&#XA0;it contains productions that mention nonterminals that
 occur on the left of a subrule declaration. In the example below
-(<span style="font-family:monospace">test11.ott</span>) the
-<span style="font-family:monospace">t</span> rule contains a production <span style="font-family:monospace">Foo v</span>.
+(<span class="tt">test11.ott</span>) the
+<span class="tt">t</span> rule contains a production <span class="tt">Foo v</span>.
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">metavar</span></span> termvar <span style="color:#007FFF"><span style="font-family:monospace">,</span></span> x <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>
-    <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> string <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">coq</span></span> nat <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">coq-equality</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">hol</span></span> string <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">ocaml</span></span> int <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+  <span style="color:#A51815"><span class="tt">metavar</span></span> termvar <span style="color:#007FFF"><span class="tt">,</span></span> x <span style="color:#007FFF"><span class="tt">::=</span></span>
+    <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> string <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">coq</span></span> nat <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">coq-equality</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">hol</span></span> string <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">ocaml</span></span> int <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 
-  <span style="color:#A51815"><span style="font-family:monospace">grammar</span></span>
-    t <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;t_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>                                         
-      <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> x                   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Var                   
-      <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">\</span> x . t             <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam  <span style="color:#007FFF"><span style="font-family:monospace">(+</span></span> <span style="color:#A51815"><span style="font-family:monospace">bind</span></span> x <span style="color:#A51815"><span style="font-family:monospace">in</span></span> t <span style="color:#007FFF"><span style="font-family:monospace">+)</span></span>
-      <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> t t&#X2019;                <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> App                   
-      <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> Foo v               <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Foo
+  <span style="color:#A51815"><span class="tt">grammar</span></span>
+    t <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;t_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>                                         
+      <span style="color:#007FFF"><span class="tt">|</span></span> x                   <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> Var                   
+      <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">\</span> x . t             <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> Lam  <span style="color:#007FFF"><span class="tt">(+</span></span> <span style="color:#A51815"><span class="tt">bind</span></span> x <span style="color:#A51815"><span class="tt">in</span></span> t <span style="color:#007FFF"><span class="tt">+)</span></span>
+      <span style="color:#007FFF"><span class="tt">|</span></span> t t&#X2019;                <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> App                   
+      <span style="color:#007FFF"><span class="tt">|</span></span> Foo v               <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> Foo
 
-    v <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;v_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>                        
-      <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">\</span> x . t             <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam   
+    v <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;v_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>                        
+      <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">\</span> x . t             <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> Lam   
 
-  <span style="color:#A51815"><span style="font-family:monospace">subrules</span></span>
-    v <span style="color:#007FFF"><span style="font-family:monospace">&lt;::</span></span> t
+  <span style="color:#A51815"><span class="tt">subrules</span></span>
+    v <span style="color:#007FFF"><span class="tt">&lt;::</span></span> t
 
-  <span style="color:#A51815"><span style="font-family:monospace">defns</span></span>
-    Jb <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X201D; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>
+  <span style="color:#A51815"><span class="tt">defns</span></span>
+    Jb <span style="color:#007FFF"><span class="tt">::</span></span> &#X201D; <span style="color:#007FFF"><span class="tt">::=</span></span>
 
-      <span style="color:#A51815"><span style="font-family:monospace">defn</span></span>
-      Baz t , v <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Baz <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X201D;       <span style="color:#A51815"><span style="font-family:monospace">by</span></span> 
+      <span style="color:#A51815"><span class="tt">defn</span></span>
+      Baz t , v <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> Baz <span style="color:#007FFF"><span class="tt">::</span></span> &#X201D;       <span style="color:#A51815"><span class="tt">by</span></span> 
 
       
-<span style="color:#007FFF"><span style="font-family:monospace">      ---------</span></span> :: ax
+<span style="color:#007FFF"><span class="tt">      ---------</span></span> :: ax
       Baz t , v
 </pre><p>
 
-In this case generated Isabelle/Coq/HOL/OCaml will define a single type and both <span style="font-family:monospace">is_v</span>
-and <span style="font-family:monospace">is_t</span> predicates, and the generated inductive definition
-clause for <span style="font-family:monospace">ax</span> uses both predicates. The Isabelle clause is below.
+In this case generated Isabelle/Coq/HOL/OCaml will define a single type and both <span class="tt">is_v</span>
+and <span class="tt">is_t</span> predicates, and the generated inductive definition
+clause for <span class="tt">ax</span> uses both predicates. The Isabelle clause is below.
 </p><pre class="verbatim">  axI: "[|is_t t ; is_v v|] ==&gt;  ( t , v ) : Baz"
 </pre>
 <!--TOC section id="sec55" Context rules-->
 <h2 id="sec55" class="section">14&#X2003;Context rules</h2><!--SEC END --><p><a id="a69"></a>The system supports the definition of single-hole contexts, e.g.&#XA0;for
 evaluation contexts. For example, suppose one has a term grammar as below:
 </p><pre>
-t <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;t_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>                               <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> term    <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> x                  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Var                   <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> variable<span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">\</span> x . t            <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam <span style="color:#007FFF"><span style="font-family:monospace">(+</span></span> <span style="color:#A51815"><span style="font-family:monospace">bind</span></span> x <span style="color:#A51815"><span style="font-family:monospace">in</span></span> t <span style="color:#007FFF"><span style="font-family:monospace">+)</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> lambda  <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> t t&#X2019;               <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> App                   <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> app     <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> ( t1 , <span style="color:#007FFF"><span style="font-family:monospace">....</span></span> , tn ) <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Tuple                 <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> tuple <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> ( t )              <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">S</span></span><span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Paren                 <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">icho</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> 
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">{</span> t / x <span style="font-family:monospace">}</span> t&#X2019;       <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">M</span></span><span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Tsub  
-                        <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">icho</span></span> (tsubst_t <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>x<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>)<span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> E . t              <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">M</span></span><span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Ctx  
-                        <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">icho</span></span> (appctx_E_t <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>E<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>)<span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-                        <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>E<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="font-family:monospace">\</span>cdot <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+t <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;t_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>                               <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> term    <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> x                  <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> Var                   <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> variable<span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">\</span> x . t            <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> Lam <span style="color:#007FFF"><span class="tt">(+</span></span> <span style="color:#A51815"><span class="tt">bind</span></span> x <span style="color:#A51815"><span class="tt">in</span></span> t <span style="color:#007FFF"><span class="tt">+)</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> lambda  <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> t t&#X2019;               <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> App                   <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> app     <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> ( t1 , <span style="color:#007FFF"><span class="tt">....</span></span> , tn ) <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> Tuple                 <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> tuple <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> ( t )              <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">S</span></span><span style="color:#007FFF"><span class="tt">::</span></span> Paren                 <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">icho</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span>  <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> 
+  <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">{</span> t / x <span class="tt">}</span> t&#X2019;       <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">M</span></span><span style="color:#007FFF"><span class="tt">::</span></span> Tsub  
+                        <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">icho</span></span> (tsubst_t <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>x<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>t&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span>)<span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+
+  <span style="color:#007FFF"><span class="tt">|</span></span> E . t              <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">M</span></span><span style="color:#007FFF"><span class="tt">::</span></span> Ctx  
+                        <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">icho</span></span> (appctx_E_t <span style="color:#007FFF"><span class="tt">[[</span></span>E<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span>)<span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+                        <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>E<span style="color:#007FFF"><span class="tt">]]</span></span> <span class="tt">\</span>cdot <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>
 A context grammar is declared as a normal grammar but with a single
 occurrence of the terminal <code class="verb">__</code> in each production, e.g. as in
-the grammar for <span style="font-family:monospace">E</span> below (a rather strange evaluation
+the grammar for <span class="tt">E</span> below (a rather strange evaluation
 strategy, admittedly).
 </p><pre>
-E <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;E_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>                               <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> evaluation context <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> __ t         <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> AppL                   <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> app L    <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> v __         <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> AppR                   <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> app R    <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">\</span> x . __     <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam                    <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> reduce under lambda <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> ( t1 ( __  t2 ) ) <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Nested              <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> hole nested <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> ( v1 , <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> , vm , __ , t1 , <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> , tn ) <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Tuple <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> tuple <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-</pre><p>
-A <span style="color:#A51815"><span style="font-family:monospace">contextrules</span></span> declaration:
+E <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;E_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>                               <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> evaluation context <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> __ t         <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> AppL                   <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> app L    <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> v __         <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> AppR                   <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> app R    <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">\</span> x . __     <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> Lam                    <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> reduce under lambda <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> ( t1 ( __  t2 ) ) <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> Nested              <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> hole nested <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> ( v1 , <span style="color:#007FFF"><span class="tt">..</span></span> , vm , __ , t1 , <span style="color:#007FFF"><span class="tt">..</span></span> , tn ) <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> Tuple <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> tuple <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+</pre><p>
+A <span style="color:#A51815"><span class="tt">contextrules</span></span> declaration:
 </p><pre>
-<span style="color:#A51815"><span style="font-family:monospace">contextrules</span></span>
-  E <span style="color:#007FFF"><span style="font-family:monospace">_::</span></span> t <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> t
+<span style="color:#A51815"><span class="tt">contextrules</span></span>
+  E <span style="color:#007FFF"><span class="tt">_::</span></span> t <span style="color:#007FFF"><span class="tt">::</span></span> t
 </pre><p>
-causes Ott to (a) check that each production of the <span style="font-family:monospace">E</span> grammar
-is indeed a context for the <span style="font-family:monospace">t</span> grammar, and (b) generates
+causes Ott to (a) check that each production of the <span class="tt">E</span> grammar
+is indeed a context for the <span class="tt">t</span> grammar, and (b) generates
 proof assistant functions, e.g.&#XA0;<code class="verb">appctx_E_t</code>, to apply a context
 to a term:
 </p><pre class="verbatim">(** context application *)
@@ -2448,81 +2457,81 @@ <h2 id="sec55" class="section">14&#X2003;Context rules</h2><!--SEC END --><p><a
   | (E_Tuple v_list t_list) =&gt; (t_Tuple ((app_list_t v_list
      (app_list_t (Cons_list_t t_6 Nil_list_t) (app_list_t t_list Nil_list_t)))))
 </pre><p>
-As the <span style="font-family:monospace">Nested</span> production shows, context productions can
-involve nested term structure.</p><p>Note also that here the <span style="font-family:monospace">E</span> grammar is not free (it mentions the
-subrule nonterminal <span style="font-family:monospace">v</span>) so an isvalue predicate
+As the <span class="tt">Nested</span> production shows, context productions can
+involve nested term structure.</p><p>Note also that here the <span class="tt">E</span> grammar is not free (it mentions the
+subrule nonterminal <span class="tt">v</span>) so an isvalue predicate
 <code class="verb">is_E_of_E</code> is also generated.</p><p>In general, context rule declarations have the form
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">contextrules</span></span>
-    ntE <span style="color:#007FFF"><span style="font-family:monospace">_::</span></span> nt1 <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> nt2
+  <span style="color:#A51815"><span class="tt">contextrules</span></span>
+    ntE <span style="color:#007FFF"><span class="tt">_::</span></span> nt1 <span style="color:#007FFF"><span class="tt">::</span></span> nt2
 </pre><p>
-where <span style="font-family:monospace">ntE</span>, <span style="font-family:monospace">nt1</span>, and <span style="font-family:monospace">nt2</span> are nonterminal
-roots. This declares contexts <span style="font-family:monospace">ntE</span> for the <span style="font-family:monospace">nt1</span>
-grammar, with holes in <span style="font-family:monospace">nt2</span> positions.</p><p>Just as for substitutions, the context application function is
+where <span class="tt">ntE</span>, <span class="tt">nt1</span>, and <span class="tt">nt2</span> are nonterminal
+roots. This declares contexts <span class="tt">ntE</span> for the <span class="tt">nt1</span>
+grammar, with holes in <span class="tt">nt2</span> positions.</p><p>Just as for substitutions, the context application function is
 typically used by adding a metaproduction to the term grammar. 
-Here we add a production <span style="font-family:monospace">E.t</span> to the <span style="font-family:monospace">t</span> grammar with
-an <span style="font-family:monospace">icho</span> hom that uses <code class="verb">appctx_E_t</code>.
+Here we add a production <span class="tt">E.t</span> to the <span class="tt">t</span> grammar with
+an <span class="tt">icho</span> hom that uses <code class="verb">appctx_E_t</code>.
 </p><pre>
-t <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;t_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>                               <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> term    <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+t <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;t_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>                               <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> term    <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
   ...
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> E . t              <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">M</span></span><span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Ctx  
-                        <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">icho</span></span> (appctx_E_t <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>E<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>)<span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-                        <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>E<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="font-family:monospace">\</span>cdot <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> E . t              <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">M</span></span><span style="color:#007FFF"><span class="tt">::</span></span> Ctx  
+                        <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">icho</span></span> (appctx_E_t <span style="color:#007FFF"><span class="tt">[[</span></span>E<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span>)<span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+                        <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>E<span style="color:#007FFF"><span class="tt">]]</span></span> <span class="tt">\</span>cdot <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>
 That can then be used in relations:
 </p><pre>
     t --&gt; t&#X2019;
-<span style="color:#007FFF"><span style="font-family:monospace">    --------------</span></span> :: ctx
+<span style="color:#007FFF"><span class="tt">    --------------</span></span> :: ctx
     E.t --&gt; E.t&#X2019;
-</pre><p>One would typically also define a <span style="font-family:monospace">terminals</span> production for
+</pre><p>One would typically also define a <span class="tt">terminals</span> production for
 the hole terminal <code class="verb">__</code>, e.g.&#XA0;here we typeset the hole as [&#XB7;].
 </p><pre>
-<span style="color:#A51815"><span style="font-family:monospace">terminals</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;terminals_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> __           <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> hole    <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> [<span style="font-family:monospace">\</span>cdot] <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+<span style="color:#A51815"><span class="tt">terminals</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;terminals_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> __           <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> hole    <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> [<span class="tt">\</span>cdot] <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre>
 <!--TOC section id="sec56" Auxiliary Rules-->
 <h2 id="sec56" class="section">15&#X2003;Auxiliary Rules</h2><!--SEC END --><p>
-We permit an <span style="font-family:monospace">aux</span> hom on grammar rules. For any rule with such a hom,
-we transform that rule by appending an <span style="font-family:monospace">_aux</span> to its primary nonterminal
+We permit an <span class="tt">aux</span> hom on grammar rules. For any rule with such a hom,
+we transform that rule by appending an <span class="tt">_aux</span> to its primary nonterminal
 root name. We then add a synthesised rule with the original nonterminal
 root name and a single production, with a shape described by the body of 
 the aux hom, which must be of the form 
 </p><pre class="verbatim">  {{ aux  foo1 foo2 _ bar1 bar2 bar3 }}
 </pre><p>
-with a single <span style="font-family:monospace">_</span> and any number of strings <span style="font-family:monospace">fooi</span> and <span style="font-family:monospace">barj</span> before and
-after. The <span style="font-family:monospace">_</span> is replaced by the original
-nonterminal root name. </p><p>For example, given a grammar or metavariable <span style="font-family:monospace">l</span> of source locations, one
+with a single <span class="tt">_</span> and any number of strings <span class="tt">fooi</span> and <span class="tt">barj</span> before and
+after. The <span class="tt">_</span> is replaced by the original
+nonterminal root name. </p><p>For example, given a grammar or metavariable <span class="tt">l</span> of source locations, one
 might say 
 </p><pre class="verbatim">ntr :: 'NTR_'  ::=  {{ aux _ l }}
  | ...
 </pre><p>
-to synthesise grammars <span style="font-family:monospace">ntr_aux</span> and <span style="font-family:monospace">ntr</span> of unannotated and location-annotated 
+to synthesise grammars <span class="tt">ntr_aux</span> and <span class="tt">ntr</span> of unannotated and location-annotated 
 terms, the first with all the original productions and the second with a 
 single production 
 </p><pre class="verbatim"> | ntr l :: :: NTR_aux. 
 </pre><p>
-If the rule has an empty production name wrapper (eg with <span style="font-family:monospace">&#X2019;&#X2019;</span> in place
-of <span style="font-family:monospace">&#X2019;NTR_&#X2019;</span>) then the production name is based on the original
-nonterminal root, capitalised and with <span style="font-family:monospace">_aux</span> appended (eg <span style="font-family:monospace">Ntr_aux</span>), to
-avoid spurious conflicts.</p><p>An additional <span style="font-family:monospace">auxparams</span> hom on rules lets the user add type
+If the rule has an empty production name wrapper (eg with <span class="tt">&#X2019;&#X2019;</span> in place
+of <span class="tt">&#X2019;NTR_&#X2019;</span>) then the production name is based on the original
+nonterminal root, capitalised and with <span class="tt">_aux</span> appended (eg <span class="tt">Ntr_aux</span>), to
+avoid spurious conflicts.</p><p>An additional <span class="tt">auxparams</span> hom on rules lets the user add type
 parameters to the generated OCaml output. </p><p>Generation of aux rules is controlled by a command-line option
-<span style="font-family:monospace">-generate_aux_rules</span>, which one might (eg) set to false
+<span class="tt">-generate_aux_rules</span>, which one might (eg) set to false
 for latex output and true for OCaml output.</p>
 <!--TOC section id="sec57" Functions-->
 <h2 id="sec57" class="section">16&#X2003;Functions</h2><!--SEC END --><p>Ott includes experimental support for writing function definitions.
 As a simple example, consider the Ott file below:</p><pre>
-    <span style="color:#A51815"><span style="font-family:monospace">grammar</span></span>
-     n <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;n_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>
-       | 0       <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Zero
-       | S n     <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Succ
-
-    <span style="color:#A51815"><span style="font-family:monospace">funs</span></span>
-      Add <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> hol-proof ...  <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-    <span style="color:#A51815"><span style="font-family:monospace">fun</span></span>
-      n1 + n2 <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> n <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> add    <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> com a function of type num -&gt; num -&gt; num <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-    <span style="color:#A51815"><span style="font-family:monospace">by</span></span>
-      0 + n2 <span style="color:#007FFF"><span style="font-family:monospace">===</span></span> n2
-      S n1 + n2 <span style="color:#007FFF"><span style="font-family:monospace">===</span></span> n1 + S n2
+    <span style="color:#A51815"><span class="tt">grammar</span></span>
+     n <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;n_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>
+       | 0       <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> Zero
+       | S n     <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> Succ
+
+    <span style="color:#A51815"><span class="tt">funs</span></span>
+      Add <span style="color:#007FFF"><span class="tt">::=</span></span>   <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> hol-proof ...  <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+    <span style="color:#A51815"><span class="tt">fun</span></span>
+      n1 + n2 <span style="color:#007FFF"><span class="tt">::</span></span> n <span style="color:#007FFF"><span class="tt">::</span></span> add    <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> com a function of type num -&gt; num -&gt; num <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+    <span style="color:#A51815"><span class="tt">by</span></span>
+      0 + n2 <span style="color:#007FFF"><span class="tt">===</span></span> n2
+      S n1 + n2 <span style="color:#007FFF"><span class="tt">===</span></span> n1 + S n2
 </pre><p>Here the <code class="verb">add</code> function is compiled into the following Coq code:</p><pre>
     Fixpoint add (x1:num) (x2:num) : num:=
       match x1,x2 with
@@ -2530,9 +2539,9 @@ <h2 id="sec57" class="section">16&#X2003;Functions</h2><!--SEC END --><p>Ott inc
       | (n_succ n1) , n2 =&gt;  (add n1 (n_succ n2) ) 
     end.
 </pre><p>More in detail, the 
-<span style="color:#A51815"><span style="font-family:monospace">fun</span></span>
-n1 + n2 <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> n <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> add
-<span style="color:#A51815"><span style="font-family:monospace">by</span></span>
+<span style="color:#A51815"><span class="tt">fun</span></span>
+n1 + n2 <span style="color:#007FFF"><span class="tt">::</span></span> n <span style="color:#007FFF"><span class="tt">::</span></span> add
+<span style="color:#A51815"><span class="tt">by</span></span>
 declaration specifies:
 </p><ul class="itemize"><li class="li-itemize">the name of the function: <code class="verb">add</code>
 </li><li class="li-itemize">the symbolic term that defines the lhs: <code class="verb">n1 + n2</code>
@@ -2545,10 +2554,10 @@ <h2 id="sec57" class="section">16&#X2003;Functions</h2><!--SEC END --><p>Ott inc
 <code class="verb">nt ::= symb_term</code> is added to the definition of the
 non-terminal <code class="verb">nt</code> (in the above example, the production
 <code class="verb">n1 + n2</code> is added to the grammar of <code class="verb">num</code>).</p><p>Functions are then defined by case analysis, where the lhs and the rhs
-are separated by the reserved symbol <span style="color:#007FFF"><span style="font-family:monospace">===</span></span>.</p><p>The <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <code class="verb">hol-proof</code> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> hom
+are separated by the reserved symbol <span style="color:#007FFF"><span class="tt">===</span></span>.</p><p>The <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <code class="verb">hol-proof</code> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> hom
 allows the specification of a termination proof, which is required by
 Hol. Mutually recursive functions can be defined in the same
-<span style="color:#A51815"><span style="font-family:monospace">funs</span></span> block, analogously to mutually recursive rule
+<span style="color:#A51815"><span class="tt">funs</span></span> block, analogously to mutually recursive rule
 definitions.</p><p><em>Disclaimer:</em> the different treatment of partial functions by the
 different provers can result in a function definition being compiled
 correctly to one prover but not to others.</p>
@@ -2556,7 +2565,7 @@ <h2 id="sec57" class="section">16&#X2003;Functions</h2><!--SEC END --><p>Ott inc
 <h2 id="sec58" class="section">17&#X2003;Parsing Priorities</h2><!--SEC END --><p>Symbolic terms that can have more than one parse tree are typically considered
 erroneous; however, certain classes of parse trees are ignored in order to
 support common idioms that are ambiguous. For example, the production 
-</p><table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell">&#X393;&#X2004;::=&#X2004;&#X393;<sub>1</sub>,&#X2004;..,&#X2004;&#X393;<sub><span style="font-style:italic">n</span></sub></td></tr>
+</p><table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell">&#X393; ::= &#X393;<sub>1</sub>, .., &#X393;<sub><span class="it">n</span></sub></td></tr>
 </table><p>
 might be used to allow a list of typing contexts to be appended together, but
 it is highly ambiguous. The following restrictions forbid many unwanted parses
@@ -2571,23 +2580,23 @@ <h2 id="sec58" class="section">17&#X2003;Parsing Priorities</h2><!--SEC END --><
 &#X393;<sub>1</sub>,&#X393;<sub>2</sub>,&#X393;<sub>3</sub>,&#X393;<sub>4</sub> will not parse as a two element sequence
 of two element sequences (&#X393;<sub>1</sub>,&#X393;<sub>2</sub>),(&#X393;<sub>3</sub>,&#X393;<sub>4</sub>) given the
 production above.
-</li><li class="li-itemize">User supplied priority annotations in a <span style="color:#A51815"><span style="font-family:monospace">parsing</span></span> section rule out certain
+</li><li class="li-itemize">User supplied priority annotations in a <span style="color:#A51815"><span class="tt">parsing</span></span> section rule out certain
 trees as follows:
-<ul class="itemize"><li class="li-itemize"><span style="font-style:italic">prodname</span><sub>1</sub> <span style="color:#007FFF"><span style="font-family:monospace">&lt;=</span></span> <span style="font-style:italic">prodname</span><sub>2</sub>: Parse trees where a
-<span style="font-style:italic">prodname</span><sub>1</sub> node is a child of a <span style="font-style:italic">prodname</span><sub>2</sub> node are
+<ul class="itemize"><li class="li-itemize"><span class="it">prodname</span><sub>1</sub> <span style="color:#007FFF"><span class="tt">&lt;=</span></span> <span class="it">prodname</span><sub>2</sub>: Parse trees where a
+<span class="it">prodname</span><sub>1</sub> node is a child of a <span class="it">prodname</span><sub>2</sub> node are
 ignored.
-</li><li class="li-itemize"><span style="font-style:italic">prodname</span><sub>1</sub>&#XA0;<span style="color:#A51815"><span style="font-family:monospace">right</span></span>&#XA0;<span style="font-style:italic">prodname</span><sub>2</sub>: Parse trees where a
-<span style="font-style:italic">prodname</span><sub>1</sub> node is the leftmost child of a <span style="font-style:italic">prodname</span><sub>1</sub>
+</li><li class="li-itemize"><span class="it">prodname</span><sub>1</sub>&#XA0;<span style="color:#A51815"><span class="tt">right</span></span>&#XA0;<span class="it">prodname</span><sub>2</sub>: Parse trees where a
+<span class="it">prodname</span><sub>1</sub> node is the leftmost child of a <span class="it">prodname</span><sub>1</sub>
 node are ignored.
-</li><li class="li-itemize"><span style="font-style:italic">prodname</span><sub>1</sub>&#XA0;<span style="color:#A51815"><span style="font-family:monospace">left</span></span>&#XA0;<span style="font-style:italic">prodname</span><sub>2</sub>: Parse trees where a
-<span style="font-style:italic">prodname</span><sub>2</sub> node is the rightmost child of a <span style="font-style:italic">prodname</span><sub>1</sub>
+</li><li class="li-itemize"><span class="it">prodname</span><sub>1</sub>&#XA0;<span style="color:#A51815"><span class="tt">left</span></span>&#XA0;<span class="it">prodname</span><sub>2</sub>: Parse trees where a
+<span class="it">prodname</span><sub>2</sub> node is the rightmost child of a <span class="it">prodname</span><sub>1</sub>
 node are ignored.
 </li></ul>
 In addition to immediate children, these priority annotations also prohibit
 parse trees where the forbidden child node occurs underneath a chain of
 derivations from the specified parent when the chain does not consume any
 input.
-Figure&#XA0;<a href="#parsing_figure">17</a> demonstrates a typical use of a <span style="color:#A51815"><span style="font-family:monospace">parsing</span></span>
+Figure&#XA0;<a href="#parsing_figure">17</a> demonstrates a typical use of a <span style="color:#A51815"><span class="tt">parsing</span></span>
 section; the declarations have effect as follows:
 <ul class="itemize"><li class="li-itemize">Line #1: <code class="verb">n + n + n</code> parses as <code class="verb">(n + n) + n</code>, but not <code class="verb">n + (n + n)</code>;
 </li><li class="li-itemize">Line #3: <code class="verb">n + n - n</code> parses as <code class="verb">(n + n) - n</code>, but not <code class="verb">n + (n - n)</code>;
@@ -2596,51 +2605,51 @@ <h2 id="sec58" class="section">17&#X2003;Parsing Priorities</h2><!--SEC END --><
 <code class="verb">n n + n</code> parses as <code class="verb">(n n) + n</code>, but not <code class="verb">n (n + n)</code>;
 </li><li class="li-itemize">Line #20: <code class="verb">n, n n, n</code> parses as <code class="verb">n, (n n), n</code>, but not <code class="verb">(n, n) (n, n)</code>.
 </li></ul>
-Currently, the <span style="color:#A51815"><span style="font-family:monospace">parsing</span></span> section supports only these relatively low level
+Currently, the <span style="color:#A51815"><span class="tt">parsing</span></span> section supports only these relatively low level
 and verbose declarations.
 </li></ul><blockquote class="figure"><div class="center"><hr class="floatrule"></div><pre>
 <pre>
-<span style="color:#A51815"><span style="font-family:monospace">metavar</span></span> n <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>
-
-<span style="color:#A51815"><span style="font-family:monospace">grammar</span></span>
-
-e <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> e_ <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span> 
-<span style="color:#007FFF"><span style="font-family:monospace">|</span></span> n             <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> num
-<span style="color:#007FFF"><span style="font-family:monospace">|</span></span> - e           <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> neg
-<span style="color:#007FFF"><span style="font-family:monospace">|</span></span> e1 + e2       <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> add
-<span style="color:#007FFF"><span style="font-family:monospace">|</span></span> e1 - e2       <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> sub
-<span style="color:#007FFF"><span style="font-family:monospace">|</span></span> e1 e2         <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> mul
-<span style="color:#007FFF"><span style="font-family:monospace">|</span></span> e1 / e2       <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> div
-<span style="color:#007FFF"><span style="font-family:monospace">|</span></span> e1 , <span style="color:#007FFF"><span style="font-family:monospace">..</span></span> , e2  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> tup
-<span style="color:#007FFF"><span style="font-family:monospace">|</span></span> ( e )         <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">M</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> par <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">icho</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>e<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-
-<span style="color:#A51815"><span style="font-family:monospace">parsing</span></span>
-
-e_add <span style="color:#A51815"><span style="font-family:monospace">left</span></span> e_add   % #1
-e_sub <span style="color:#A51815"><span style="font-family:monospace">left</span></span> e_sub
-e_add <span style="color:#A51815"><span style="font-family:monospace">left</span></span> e_sub   % #3
-e_sub <span style="color:#A51815"><span style="font-family:monospace">left</span></span> e_add
-
-e_mul <span style="color:#A51815"><span style="font-family:monospace">left</span></span> e_mul
-e_div <span style="color:#A51815"><span style="font-family:monospace">left</span></span> e_div
-e_mul <span style="color:#A51815"><span style="font-family:monospace">left</span></span> e_div
-e_div <span style="color:#A51815"><span style="font-family:monospace">left</span></span> e_mul
-
-e_neg <span style="color:#007FFF"><span style="font-family:monospace">&lt;=</span></span> e_add     % #9
-e_neg <span style="color:#007FFF"><span style="font-family:monospace">&lt;=</span></span> e_sub
-e_neg <span style="color:#007FFF"><span style="font-family:monospace">&lt;=</span></span> e_mul
-e_neg <span style="color:#007FFF"><span style="font-family:monospace">&lt;=</span></span> e_div
-e_neg <span style="color:#007FFF"><span style="font-family:monospace">&lt;=</span></span> e_tup
-
-e_add <span style="color:#007FFF"><span style="font-family:monospace">&lt;=</span></span> e_div
-e_add <span style="color:#007FFF"><span style="font-family:monospace">&lt;=</span></span> e_mul     % #15
-e_add <span style="color:#007FFF"><span style="font-family:monospace">&lt;=</span></span> e_tup
-e_sub <span style="color:#007FFF"><span style="font-family:monospace">&lt;=</span></span> e_div
-e_sub <span style="color:#007FFF"><span style="font-family:monospace">&lt;=</span></span> e_mul
-e_sub <span style="color:#007FFF"><span style="font-family:monospace">&lt;=</span></span> e_tup
-
-e_mul <span style="color:#007FFF"><span style="font-family:monospace">&lt;=</span></span> e_tup     % #20
-e_div <span style="color:#007FFF"><span style="font-family:monospace">&lt;=</span></span> e_tup
+<span style="color:#A51815"><span class="tt">metavar</span></span> n <span style="color:#007FFF"><span class="tt">::=</span></span>
+
+<span style="color:#A51815"><span class="tt">grammar</span></span>
+
+e <span style="color:#007FFF"><span class="tt">::</span></span> e_ <span style="color:#007FFF"><span class="tt">::=</span></span> 
+<span style="color:#007FFF"><span class="tt">|</span></span> n             <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> num
+<span style="color:#007FFF"><span class="tt">|</span></span> - e           <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> neg
+<span style="color:#007FFF"><span class="tt">|</span></span> e1 + e2       <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> add
+<span style="color:#007FFF"><span class="tt">|</span></span> e1 - e2       <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> sub
+<span style="color:#007FFF"><span class="tt">|</span></span> e1 e2         <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> mul
+<span style="color:#007FFF"><span class="tt">|</span></span> e1 / e2       <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> div
+<span style="color:#007FFF"><span class="tt">|</span></span> e1 , <span style="color:#007FFF"><span class="tt">..</span></span> , e2  <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> tup
+<span style="color:#007FFF"><span class="tt">|</span></span> ( e )         <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">M</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> par <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">icho</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>e<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+
+<span style="color:#A51815"><span class="tt">parsing</span></span>
+
+e_add <span style="color:#A51815"><span class="tt">left</span></span> e_add   % #1
+e_sub <span style="color:#A51815"><span class="tt">left</span></span> e_sub
+e_add <span style="color:#A51815"><span class="tt">left</span></span> e_sub   % #3
+e_sub <span style="color:#A51815"><span class="tt">left</span></span> e_add
+
+e_mul <span style="color:#A51815"><span class="tt">left</span></span> e_mul
+e_div <span style="color:#A51815"><span class="tt">left</span></span> e_div
+e_mul <span style="color:#A51815"><span class="tt">left</span></span> e_div
+e_div <span style="color:#A51815"><span class="tt">left</span></span> e_mul
+
+e_neg <span style="color:#007FFF"><span class="tt">&lt;=</span></span> e_add     % #9
+e_neg <span style="color:#007FFF"><span class="tt">&lt;=</span></span> e_sub
+e_neg <span style="color:#007FFF"><span class="tt">&lt;=</span></span> e_mul
+e_neg <span style="color:#007FFF"><span class="tt">&lt;=</span></span> e_div
+e_neg <span style="color:#007FFF"><span class="tt">&lt;=</span></span> e_tup
+
+e_add <span style="color:#007FFF"><span class="tt">&lt;=</span></span> e_div
+e_add <span style="color:#007FFF"><span class="tt">&lt;=</span></span> e_mul     % #15
+e_add <span style="color:#007FFF"><span class="tt">&lt;=</span></span> e_tup
+e_sub <span style="color:#007FFF"><span class="tt">&lt;=</span></span> e_div
+e_sub <span style="color:#007FFF"><span class="tt">&lt;=</span></span> e_mul
+e_sub <span style="color:#007FFF"><span class="tt">&lt;=</span></span> e_tup
+
+e_mul <span style="color:#007FFF"><span class="tt">&lt;=</span></span> e_tup     % #20
+e_div <span style="color:#007FFF"><span class="tt">&lt;=</span></span> e_tup
 
 </pre>
 
@@ -2650,14 +2659,14 @@ <h2 id="sec58" class="section">17&#X2003;Parsing Priorities</h2><!--SEC END --><
 <!--TOC section id="sec59" Combining multiple source files-->
 <h2 id="sec59" class="section">18&#X2003;Combining multiple source files</h2><!--SEC END --><p>
 Ott can be invoked with multiple source files.
-Input filenames with extensions <span style="font-family:monospace">.tex</span>, <span style="font-family:monospace">.v</span>,
-<span style="font-family:monospace">.thy</span>, <span style="font-family:monospace">.sml</span>, or <span style="font-family:monospace">ml</span> are simply copied into
+Input filenames with extensions <span class="tt">.tex</span>, <span class="tt">.v</span>,
+<span class="tt">.thy</span>, <span class="tt">.sml</span>, or <span class="tt">ml</span> are simply copied into
 the relevant output (L<sup>A</sup>T<sub>E</sub>X, Coq, Isabelle, HOL, or OCaml). 
 By default the source-file and command-line order of blocks is preserved, for grammar,
 embeds, and inductive definitions.</p><p>The prover output can be split into multiple output files: each prover
-output file specified with <span style="font-family:monospace">-o &lt;filename&gt;</span> will contain the material
-from the previous input files specified with <span style="font-family:monospace">-i</span> (since the last <span style="font-family:monospace">-o</span>
-for the same prover).</p><p>Alternatively, one can add a <span style="font-family:monospace">-merge true</span> command-line option,
+output file specified with <span class="tt">-o &lt;filename&gt;</span> will contain the material
+from the previous input files specified with <span class="tt">-i</span> (since the last <span class="tt">-o</span>
+for the same prover).</p><p>Alternatively, one can add a <span class="tt">-merge true</span> command-line option,
 in which case
 the productions of multiple grammars that share the same header
 are merged into a single grammar, and the rules of multiple
@@ -2668,50 +2677,50 @@ <h2 id="sec59" class="section">18&#X2003;Combining multiple source files</h2><!-
 reusable Ott components to define standard formulae, LaTeX pretty
 printing of terminals, or LaTeX styles. 
 For example, Figure&#XA0;<a href="#a12">15</a> shows the Ott source file for a
-<span style="font-family:monospace">let</span> feature in isolation, taken from our Ott development of
-some languages from Pierce&#X2019;s TAPL&#XA0;[<a href="#Pierce%3ATypeSystems"></a>].
+<span class="tt">let</span> feature in isolation, taken from our Ott development of
+some languages from Pierce&#X2019;s TAPL&#XA0;[<a href="#Pierce%3ATypeSystems">Pie02</a>].
 </p><blockquote class="figure"><div class="center"><hr class="floatrule"></div>
 <span class="lrbox framebox">&#X2004;<div class="minipage">
 <pre><span style="font-size:small">
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">grammar</span></span></span><span style="font-size:small">
-t </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Tm </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small">                                        </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> terms: </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
-  </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">|</span></span></span><span style="font-size:small"> let x = t in t&#X2019;                   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> Let </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">(+</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">bind</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">in</span></span></span><span style="font-size:small"> t&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">+)</span></span></span><span style="font-size:small">     </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> let binding </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">grammar</span></span></span><span style="font-size:small">
+t </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Tm </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small">                                        </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> terms: </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
+  </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">|</span></span></span><span style="font-size:small"> let x = t in t&#X2019;                   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small">   </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> Let </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">(+</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">bind</span></span></span><span style="font-size:small"> x </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">in</span></span></span><span style="font-size:small"> t&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">+)</span></span></span><span style="font-size:small">     </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> let binding </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small">
 
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">defns</span></span></span><span style="font-size:small"> 
-Jop </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small"> 
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">defns</span></span></span><span style="font-size:small"> 
+Jop </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small"> 
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">defn</span></span></span><span style="font-size:small"> 
-t --&gt; t&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> red </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> E_ </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> Evaluation </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">by</span></span></span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">defn</span></span></span><span style="font-size:small"> 
+t --&gt; t&#X2019; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> red </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> E_ </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> Evaluation </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">by</span></span></span><span style="font-size:small">
 
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">-----------------------------</span></span></span><span style="font-size:small"> :: LetV
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">-----------------------------</span></span></span><span style="font-size:small"> :: LetV
 let x=v1 in t2 --&gt; [x|-&gt;v1]t2 
 
 t1 --&gt; t1&#X2019;
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">----------------------------------</span></span></span><span style="font-size:small"> :: Let
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">----------------------------------</span></span></span><span style="font-size:small"> :: Let
 let x=t1 in t2 --&gt; let x=t1&#X2019; in t2
 
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">defns</span></span></span><span style="font-size:small">
-Jtype </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> &#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></span><span style="font-size:small"> 
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">defns</span></span></span><span style="font-size:small">
+Jtype </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> &#X201D; </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::=</span></span></span><span style="font-size:small"> 
 
-</span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">defn</span></span></span><span style="font-size:small">
-G |- t : T </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> typing </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">::</span></span></span><span style="font-size:small"> T_ </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">com</span></span></span><span style="font-size:small"> Typing </span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span style="font-family:monospace">by</span></span></span><span style="font-size:small">
+</span><span style="font-size:small"><span style="color:#A51815"><span class="tt">defn</span></span></span><span style="font-size:small">
+G |- t : T </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> typing </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">::</span></span></span><span style="font-size:small"> T_ </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">{</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">com</span></span></span><span style="font-size:small"> Typing </span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">}</span></span></span><span style="font-size:small"> </span><span style="font-size:small"><span style="color:#A51815"><span class="tt">by</span></span></span><span style="font-size:small">
 
 G |- t1:T1
 G,x:T1 |- t2:T2
-</span><span style="font-size:small"><span style="color:#007FFF"><span style="font-family:monospace">------------------------</span></span></span><span style="font-size:small"> :: Let
+</span><span style="font-size:small"><span style="color:#007FFF"><span class="tt">------------------------</span></span></span><span style="font-size:small"> :: Let
 G |- let x=t1 in t2 : T2
 </span></pre><span style="font-size:small">
 </span></div></span>
-<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 15: An <span style="font-family:monospace">ott</span> source file for the <span style="font-family:monospace">let</span> fragment of TAPL<a id="a12"></a></td></tr>
+<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 15: An <span class="tt">ott</span> source file for the <span class="tt">let</span> fragment of TAPL<a id="a12"></a></td></tr>
 </table></div>
 <div class="center"><hr class="floatrule"></div></blockquote><p>
 The original TAPL languages were produced using
-TinkerType&#XA0;[<a href="#LevinPierce99"></a>] to compose features and check for
+TinkerType&#XA0;[<a href="#LevinPierce99">LP03</a>] to compose features and check for
 conflicts. 
-In <span style="font-family:monospace">examples/tapl</span> we build a system, similar to the TinkerType
-<span style="font-family:monospace">sys-fullsimple</span>, from <span style="font-family:monospace">ott</span> source files that
+In <span class="tt">examples/tapl</span> we build a system, similar to the TinkerType
+<span class="tt">sys-fullsimple</span>, from <span class="tt">ott</span> source files that
 correspond roughly to the various TinkerType components, each with
 syntax and semantic rules for a single feature. </p>
 <!--TOC section id="sec60" Hom blocks-->
@@ -2722,90 +2731,90 @@ <h2 id="sec60" class="section">19&#X2003;Hom blocks</h2><!--SEC END --><p>
 in separate hom blocks.
 For example, one can write
 </p><pre>
-<span style="color:#A51815"><span style="font-family:monospace">homs</span></span> &#X2019;t_&#X2019;
-  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam  <span style="color:#007FFF"><span style="font-family:monospace">(+</span></span> <span style="color:#A51815"><span style="font-family:monospace">bind</span></span> x <span style="color:#A51815"><span style="font-family:monospace">in</span></span> t <span style="color:#007FFF"><span style="font-family:monospace">+)</span></span>  
+<span style="color:#A51815"><span class="tt">homs</span></span> &#X2019;t_&#X2019;
+  <span style="color:#007FFF"><span class="tt">::</span></span> Lam  <span style="color:#007FFF"><span class="tt">(+</span></span> <span style="color:#A51815"><span class="tt">bind</span></span> x <span style="color:#A51815"><span class="tt">in</span></span> t <span style="color:#007FFF"><span class="tt">+)</span></span>  
 
-<span style="color:#A51815"><span style="font-family:monospace">homs</span></span> &#X2019;t_&#X2019;
-  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Var     <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> variable <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>         
-  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam     <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> abstraction <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>      
-  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> App     <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> application <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>      
-  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> paren   <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">ich</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> 
-  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> tsub    <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">ich</span></span> ( tsubst_t <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>x<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> ) <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+<span style="color:#A51815"><span class="tt">homs</span></span> &#X2019;t_&#X2019;
+  <span style="color:#007FFF"><span class="tt">::</span></span> Var     <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> variable <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>         
+  <span style="color:#007FFF"><span class="tt">::</span></span> Lam     <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> abstraction <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>      
+  <span style="color:#007FFF"><span class="tt">::</span></span> App     <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> application <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>      
+  <span style="color:#007FFF"><span class="tt">::</span></span> paren   <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">ich</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> 
+  <span style="color:#007FFF"><span class="tt">::</span></span> tsub    <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">ich</span></span> ( tsubst_t <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>x<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>t&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span> ) <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 
-<span style="color:#A51815"><span style="font-family:monospace">homs</span></span> &#X201D;
-  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> reduce  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t1<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> reduces to <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t2<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> 
+<span style="color:#A51815"><span class="tt">homs</span></span> &#X201D;
+  <span style="color:#007FFF"><span class="tt">::</span></span> reduce  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>t1<span style="color:#007FFF"><span class="tt">]]</span></span> reduces to <span style="color:#007FFF"><span class="tt">[[</span></span>t2<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> 
 </pre><p>
 Each of these begins with a prefix and then has a sequence of
 production name or definition name kernels, each followed by a
 sequence of bindspecs and then a sequence of homomorphisms.</p><p>The <code class="verb">test10_homs.ott</code> example, in Fig.&#XA0;<a href="#a38">16</a>, shows this. It
 is semantically equivalent to the <code class="verb">test10.ott</code> example of
-Fig.&#XA0;<a href="#a68">8</a>, but the homs have been moved into <span style="font-family:monospace">hom</span>
+Fig.&#XA0;<a href="#a68">8</a>, but the homs have been moved into <span class="tt">hom</span>
 blocks.
 </p><blockquote class="figure"><div class="center"><hr class="floatrule"></div>
 <span class="lrbox framebox"><div class="minipage">
 <pre>
-<span style="color:#A51815"><span style="font-family:monospace">metavar</span></span> termvar <span style="color:#007FFF"><span style="font-family:monospace">,</span></span> x <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span> 
-  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> string <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">coq</span></span> nat <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">coq-equality</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">hol</span></span> string <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">lex</span></span> alphanum <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="font-family:monospace">\</span>mathit<span style="font-family:monospace">{</span><span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>termvar<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span><span style="font-family:monospace">}</span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span>  term variable  <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> 
+<span style="color:#A51815"><span class="tt">metavar</span></span> termvar <span style="color:#007FFF"><span class="tt">,</span></span> x <span style="color:#007FFF"><span class="tt">::=</span></span> 
+  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> string <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">coq</span></span> nat <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">coq-equality</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">hol</span></span> string <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">lex</span></span> alphanum <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span class="tt">\</span>mathit<span class="tt">{</span><span style="color:#007FFF"><span class="tt">[[</span></span>termvar<span style="color:#007FFF"><span class="tt">]]</span></span><span class="tt">}</span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span>  term variable  <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> 
 
-<span style="color:#A51815"><span style="font-family:monospace">grammar</span></span>
-  t <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;t_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>    <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> term <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> x                   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Var   
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">\</span> x . t             <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam  
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> t t&#X2019;                <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> App  
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> ( t )               <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">S</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> paren 
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">{</span> t / x <span style="font-family:monospace">}</span> t&#X2019;        <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#A51815"><span style="font-family:monospace">M</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> tsub  
+<span style="color:#A51815"><span class="tt">grammar</span></span>
+  t <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;t_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>    <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> term <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+    <span style="color:#007FFF"><span class="tt">|</span></span> x                   <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> Var   
+    <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">\</span> x . t             <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> Lam  
+    <span style="color:#007FFF"><span class="tt">|</span></span> t t&#X2019;                <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> App  
+    <span style="color:#007FFF"><span class="tt">|</span></span> ( t )               <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">S</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> paren 
+    <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">{</span> t / x <span class="tt">}</span> t&#X2019;        <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#A51815"><span class="tt">M</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> tsub  
 
-  v <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;v_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>    <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span>  value <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">\</span> x . t             <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam   
+  v <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;v_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>    <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span>  value <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+    <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">\</span> x . t             <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> Lam   
 
-  <span style="color:#A51815"><span style="font-family:monospace">terminals</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;terminals_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">\</span>                   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> lambda  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="font-family:monospace">\</span>lambda <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> --&gt;                 <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> red     <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="font-family:monospace">\</span>longrightarrow <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+  <span style="color:#A51815"><span class="tt">terminals</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;terminals_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>
+    <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">\</span>                   <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> lambda  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span class="tt">\</span>lambda <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+    <span style="color:#007FFF"><span class="tt">|</span></span> --&gt;                 <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> red     <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span class="tt">\</span>longrightarrow <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 
 
-<span style="color:#A51815"><span style="font-family:monospace">homs</span></span> &#X2019;t_&#X2019;
-  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam  <span style="color:#007FFF"><span style="font-family:monospace">(+</span></span> <span style="color:#A51815"><span style="font-family:monospace">bind</span></span> x <span style="color:#A51815"><span style="font-family:monospace">in</span></span> t <span style="color:#007FFF"><span style="font-family:monospace">+)</span></span>  
+<span style="color:#A51815"><span class="tt">homs</span></span> &#X2019;t_&#X2019;
+  <span style="color:#007FFF"><span class="tt">::</span></span> Lam  <span style="color:#007FFF"><span class="tt">(+</span></span> <span style="color:#A51815"><span class="tt">bind</span></span> x <span style="color:#A51815"><span class="tt">in</span></span> t <span style="color:#007FFF"><span class="tt">+)</span></span>  
 
-<span style="color:#A51815"><span style="font-family:monospace">homs</span></span> &#X2019;t_&#X2019;
-  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Var     <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> variable <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>         
-  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam     <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> abstraction <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>      
-  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> App     <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> application <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>      
-  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> paren   <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">ich</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> 
-  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> tsub    <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">ich</span></span> ( tsubst_t <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>x<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> ) <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+<span style="color:#A51815"><span class="tt">homs</span></span> &#X2019;t_&#X2019;
+  <span style="color:#007FFF"><span class="tt">::</span></span> Var     <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> variable <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>         
+  <span style="color:#007FFF"><span class="tt">::</span></span> Lam     <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> abstraction <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>      
+  <span style="color:#007FFF"><span class="tt">::</span></span> App     <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> application <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>      
+  <span style="color:#007FFF"><span class="tt">::</span></span> paren   <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">ich</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> 
+  <span style="color:#007FFF"><span class="tt">::</span></span> tsub    <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">ich</span></span> ( tsubst_t <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>x<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>t&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span> ) <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 
-<span style="color:#A51815"><span style="font-family:monospace">homs</span></span> &#X201D;
-  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> reduce  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">com</span></span> $<span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t1<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>$ reduces to $<span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t2<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span>$ <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> 
+<span style="color:#A51815"><span class="tt">homs</span></span> &#X201D;
+  <span style="color:#007FFF"><span class="tt">::</span></span> reduce  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">com</span></span> $<span style="color:#007FFF"><span class="tt">[[</span></span>t1<span style="color:#007FFF"><span class="tt">]]</span></span>$ reduces to $<span style="color:#007FFF"><span class="tt">[[</span></span>t2<span style="color:#007FFF"><span class="tt">]]</span></span>$ <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> 
 
 
-<span style="color:#A51815"><span style="font-family:monospace">subrules</span></span>
-  v <span style="color:#007FFF"><span style="font-family:monospace">&lt;::</span></span> t
+<span style="color:#A51815"><span class="tt">subrules</span></span>
+  v <span style="color:#007FFF"><span class="tt">&lt;::</span></span> t
 
-<span style="color:#A51815"><span style="font-family:monospace">substitutions</span></span>
-  <span style="color:#A51815"><span style="font-family:monospace">single</span></span> t x <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> tsubst 
+<span style="color:#A51815"><span class="tt">substitutions</span></span>
+  <span style="color:#A51815"><span class="tt">single</span></span> t x <span style="color:#007FFF"><span class="tt">::</span></span> tsubst 
 
-<span style="color:#A51815"><span style="font-family:monospace">defns</span></span>
-  Jop <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X201D; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>
+<span style="color:#A51815"><span class="tt">defns</span></span>
+  Jop <span style="color:#007FFF"><span class="tt">::</span></span> &#X201D; <span style="color:#007FFF"><span class="tt">::=</span></span>
 
-    <span style="color:#A51815"><span style="font-family:monospace">defn</span></span>
-    t1 --&gt; t2 <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> reduce <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X201D; <span style="color:#A51815"><span style="font-family:monospace">by</span></span> 
+    <span style="color:#A51815"><span class="tt">defn</span></span>
+    t1 --&gt; t2 <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> reduce <span style="color:#007FFF"><span class="tt">::</span></span> &#X201D; <span style="color:#A51815"><span class="tt">by</span></span> 
 
 
-<span style="color:#007FFF"><span style="font-family:monospace">    --------------------------</span></span>  :: ax_app
-    (<span style="font-family:monospace">\</span>x.t12) v2 --&gt;  <span style="font-family:monospace">{</span>v2/x<span style="font-family:monospace">}</span>t12
+<span style="color:#007FFF"><span class="tt">    --------------------------</span></span>  :: ax_app
+    (<span class="tt">\</span>x.t12) v2 --&gt;  <span class="tt">{</span>v2/x<span class="tt">}</span>t12
 
     t1 --&gt; t1&#X2019;
-<span style="color:#007FFF"><span style="font-family:monospace">    --------------</span></span> :: ctx_app_fun
+<span style="color:#007FFF"><span class="tt">    --------------</span></span> :: ctx_app_fun
     t1 t --&gt; t1&#X2019; t
 
     t1 --&gt; t1&#X2019;
-<span style="color:#007FFF"><span style="font-family:monospace">    --------------</span></span> :: ctx_app_arg
+<span style="color:#007FFF"><span class="tt">    --------------</span></span> :: ctx_app_arg
     v t1 --&gt; v t1&#X2019;
 
 </pre>
 
 </div></span>
-<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 16: Hom Sections: <span style="font-family:monospace">test10_homs.ott</span><a id="a38"></a></td></tr>
+<div class="caption"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="vertical-align:top;text-align:left;" >Figure 16: Hom Sections: <span class="tt">test10_homs.ott</span><a id="a38"></a></td></tr>
 </table></div>
 <div class="center"><hr class="floatrule"></div></blockquote>
 <!--TOC section id="sec61" Isabelle syntax support-->
@@ -2813,10 +2822,10 @@ <h2 id="sec61" class="section">20&#X2003;Isabelle syntax support</h2><!--SEC END
 and xsymbol to be used. The example <code class="verb">test10_isasyn.ott</code> shows
 this in use. 
 </p><p>Non-meta productions can be annotated with
-<span style="color:#A51815"><span style="font-family:monospace">isasyn</span></span> and/or <span style="color:#A51815"><span style="font-family:monospace">isaprec</span></span> homomorphisms. 
+<span style="color:#A51815"><span class="tt">isasyn</span></span> and/or <span style="color:#A51815"><span class="tt">isaprec</span></span> homomorphisms. 
 For example, <code class="verb">test10_isasyn.ott</code> contains the production
 </p><pre>
-  <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> t t&#X2019;      <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> App   <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isasyn</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span><span style="font-family:monospace">\</span>&lt;bullet&gt;<span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t&#X2019;<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isaprec</span></span> 50 <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+  <span style="color:#007FFF"><span class="tt">|</span></span> t t&#X2019;      <span style="color:#007FFF"><span class="tt">::</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> App   <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isasyn</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>t<span style="color:#007FFF"><span class="tt">]]</span></span><span class="tt">\</span>&lt;bullet&gt;<span style="color:#007FFF"><span class="tt">[[</span></span>t&#X2019;<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isaprec</span></span> 50 <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>
 The two homs are used to output the Isabelle syntax annotation in the
 <code class="verb">t_App</code> clause of the datatype definition below.
@@ -2827,10 +2836,10 @@ <h2 id="sec61" class="section">20&#X2003;Isabelle syntax support</h2><!--SEC END
 </span></pre><p><span style="font-size:small">
 </span>
 Definitions can be annotated with
-<span style="color:#A51815"><span style="font-family:monospace">isasyn</span></span> and/or <span style="color:#A51815"><span style="font-family:monospace">isaprec</span></span> homomorphisms similarly, e.g.&#XA0;as below.
+<span style="color:#A51815"><span class="tt">isasyn</span></span> and/or <span style="color:#A51815"><span class="tt">isaprec</span></span> homomorphisms similarly, e.g.&#XA0;as below.
 </p><pre>
-    <span style="color:#A51815"><span style="font-family:monospace">defn</span></span>
-    t1 --&gt; t2 <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> reduce <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X201D; <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isasyn</span></span> <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t1<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> ---&gt; <span style="color:#007FFF"><span style="font-family:monospace">[[</span></span>t2<span style="color:#007FFF"><span style="font-family:monospace">]]</span></span> <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>  <span style="color:#A51815"><span style="font-family:monospace">by</span></span> 
+    <span style="color:#A51815"><span class="tt">defn</span></span>
+    t1 --&gt; t2 <span style="color:#007FFF"><span class="tt">::</span></span>  <span style="color:#007FFF"><span class="tt">::</span></span> reduce <span style="color:#007FFF"><span class="tt">::</span></span> &#X201D; <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isasyn</span></span> <span style="color:#007FFF"><span class="tt">[[</span></span>t1<span style="color:#007FFF"><span class="tt">]]</span></span> ---&gt; <span style="color:#007FFF"><span class="tt">[[</span></span>t2<span style="color:#007FFF"><span class="tt">]]</span></span> <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>  <span style="color:#A51815"><span class="tt">by</span></span> 
 </pre><p>
 This generates <code class="verb">syntax</code> and <code class="verb">translations</code> blocks as below.
 </p><pre class="verbatim"><span style="font-size:small">inductive_set reduce :: "(t*t) set"
@@ -2846,13 +2855,13 @@ <h2 id="sec61" class="section">20&#X2003;Isabelle syntax support</h2><!--SEC END
 the source syntax. For example, the source file production for the
 <code class="verb">t_Lam</code> clause is
 </p><pre>
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">\</span> x . t             <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> Lam   <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isaprec</span></span> 60 <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+    <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">\</span> x . t             <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> Lam   <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isaprec</span></span> 60 <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>
 and the <code class="verb">terminals</code> grammar contains a mapping from <code class="verb">\</code> to <code class="verb">\&lt;lambda&gt;</code>:
 </p><pre>
-  <span style="color:#A51815"><span style="font-family:monospace">terminals</span></span> <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> &#X2019;terminals_&#X2019; <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span>
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> <span style="font-family:monospace">\</span>                   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> lambda  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="font-family:monospace">\</span>lambda <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>  <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> <span style="font-family:monospace">\</span>&lt;lambda&gt; <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
-    <span style="color:#007FFF"><span style="font-family:monospace">|</span></span> --&gt;                 <span style="color:#007FFF"><span style="font-family:monospace">::</span></span>   <span style="color:#007FFF"><span style="font-family:monospace">::</span></span> red     <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">tex</span></span> <span style="font-family:monospace">\</span>longrightarrow <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span> <span style="color:#007FFF"><span style="font-family:monospace">{</span></span><span style="color:#007FFF"><span style="font-family:monospace">{</span></span> <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> ---&gt; <span style="color:#007FFF"><span style="font-family:monospace">}</span></span><span style="color:#007FFF"><span style="font-family:monospace">}</span></span>
+  <span style="color:#A51815"><span class="tt">terminals</span></span> <span style="color:#007FFF"><span class="tt">::</span></span> &#X2019;terminals_&#X2019; <span style="color:#007FFF"><span class="tt">::=</span></span>
+    <span style="color:#007FFF"><span class="tt">|</span></span> <span class="tt">\</span>                   <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> lambda  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span class="tt">\</span>lambda <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>  <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> <span class="tt">\</span>&lt;lambda&gt; <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
+    <span style="color:#007FFF"><span class="tt">|</span></span> --&gt;                 <span style="color:#007FFF"><span class="tt">::</span></span>   <span style="color:#007FFF"><span class="tt">::</span></span> red     <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">tex</span></span> <span class="tt">\</span>longrightarrow <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span> <span style="color:#007FFF"><span class="tt">{</span></span><span style="color:#007FFF"><span class="tt">{</span></span> <span style="color:#A51815"><span class="tt">isa</span></span> ---&gt; <span style="color:#007FFF"><span class="tt">}</span></span><span style="color:#007FFF"><span class="tt">}</span></span>
 </pre><p>
 This is used (just as for LaTeX homs) to generate the <code class="verb">("\&lt;lambda&gt; _ . _" 60)</code>
 in the datatype definition above.</p><p>This functionality is limited in various ways:
@@ -2915,7 +2924,7 @@ <h2 id="sec62" class="section">21&#X2003;Isabelle code generation example</h2><!
 </pre>
 <!--TOC section id="sec63" Reference: Command-line usage-->
 <h2 id="sec63" class="section">22&#X2003;Reference: Command-line usage</h2><!--SEC END --><p><a id="a32"></a>A good place to get started is one of the test
-<span style="font-family:monospace">make</span> targets in the <span style="font-family:monospace">ott</span> directory, e.g.
+<span class="tt">make</span> targets in the <span class="tt">ott</span> directory, e.g.
 </p><pre class="verbatim">test10: tests/test10.ott
            bin/ott                                                \
                   -i tests/test10.ott                             \ 
@@ -2924,9 +2933,9 @@ <h2 id="sec63" class="section">22&#X2003;Reference: Command-line usage</h2><!--S
                   -parse ":t:  (\z.z z) y"                        \                  
            &amp;&amp; ($(LATEX) out; $(DVIPS) out -o)
 </pre><p>
-When <code class="verb">make test10</code> is executed, <span style="font-family:monospace">ott</span>:
+When <code class="verb">make test10</code> is executed, <span class="tt">ott</span>:
 </p><ul class="itemize"><li class="li-itemize">reads the source file <code class="verb">tests/test10.ott</code>
-</li><li class="li-itemize">(if one also specifies <span style="font-family:monospace">-show_sort true</span> and <span style="font-family:monospace">-show_defns
+</li><li class="li-itemize">(if one also specifies <span class="tt">-show_sort true</span> and <span class="tt">-show_defns
 true</span>) prints on standard output various diagnostic information,
 including ASCII versions of the grammar and
 inductive definitions.
@@ -2952,7 +2961,7 @@ <h2 id="sec63" class="section">22&#X2003;Reference: Command-line usage</h2><!--S
 runs <code class="verb">ott</code> on <code class="verb">tests/test10.ott</code>, generating all outputs. There are
 also targets &#XA0;<code class="verb">%.coq.out</code>, &#XA0;<code class="verb">%.hol.out</code>, and
 &#XA0;<code class="verb">%.isa.out</code>, to generate just LaTeX and the code for one proof
-assistant, and &#XA0;<code class="verb">%.tex.out</code>, to generate just LaTeX.</p><p>The <span style="font-family:monospace">ott</span> command-line options (with default values where applicable) are
+assistant, and &#XA0;<code class="verb">%.tex.out</code>, to generate just LaTeX.</p><p>The <span class="tt">ott</span> command-line options (with default values where applicable) are
 shown below. 
 </p><pre class="verbatim">Ott version 0.34   distribution of Mon Dec 30 10:12:45 GMT 2024
 
@@ -3038,137 +3047,137 @@ <h2 id="sec64" class="section">23&#X2003;Reference: The language of symbolic ter
 </table></div>
 <div class="center"><hr class="floatrule"></div></blockquote><p>The premises and conclusions of inductive definition rules are
 symbolic terms. 
-The language of symbolic terms is defined informally below, with interpretation functions [[_]] that map defined entities into grammar clauses.</p><p>For a rule <span style="font-style:italic">rule</span> &#X202F; = 
-</p><table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><span style="font-style:italic">nontermroot</span><sub>1</sub>&#X2004;&#X202F;&#X2004;,&#X2004;&#X202F;&#X2004;..&#X2004;&#X202F;&#X2004;,&#X2004;&#X202F;&#X2004;<span style="font-style:italic">nontermroot</span><sub><span style="font-style:italic">n</span></sub>&#X2004;<span style="font-family:monospace">::</span>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">&#X2019;&#X2019;</span>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">::=</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">prod</span><sub>1</sub>&#X2004;&#X202F;&#X2004;..&#X2004;&#X202F;&#X2004;<span style="font-style:italic">prod</span><sub><span style="font-style:italic">m</span></sub>&#X2004;</td></tr>
+The language of symbolic terms is defined informally below, with interpretation functions [[_]] that map defined entities into grammar clauses.</p><p>For a rule <span class="it">rule</span> &#X202F; = 
+</p><table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><span class="it">nontermroot</span><sub>1</sub> &#X202F; , &#X202F; .. &#X202F; , &#X202F; <span class="it">nontermroot</span><sub><span class="it">n</span></sub> <span class="tt">::</span> &#X202F; <span class="tt">&#X2019;&#X2019;</span> &#X202F; <span class="tt">::=</span> &#X202F; <span class="it">prod</span><sub>1</sub> &#X202F; .. &#X202F; <span class="it">prod</span><sub><span class="it">m</span></sub> </td></tr>
 </table><p>
 we have
-</p><table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" >&#X2004;[[<span style="font-style:italic">rule</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">nontermroot</span>&#X2004;<span style="font-style:italic">suffix</span></td><td style="text-align:left;white-space:nowrap" >(1)&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" >[[<span style="font-style:italic">prod</span><sub>1</sub>]]&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" >..&#X2004;&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" >[[<span style="font-style:italic">prod</span><sub><span style="font-style:italic">m</span></sub>]]&#X2004;
+</p><table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" > [[<span class="it">rule</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span class="it">nontermroot</span> <span class="it">suffix</span></td><td style="text-align:left;white-space:nowrap" >(1) </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" >[[<span class="it">prod</span><sub>1</sub>]] </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" >.. </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" >[[<span class="it">prod</span><sub><span class="it">m</span></sub>]] 
 </td></tr>
 </table></td></tr>
-</table><p>(1) for each <span style="font-style:italic">nontermroot</span> in the set
-{<span style="font-style:italic">nontermroot</span><sub>1</sub> &#X202F; , &#X202F; .. &#X202F; , &#X202F;
-<span style="font-style:italic">nontermroot</span><sub><span style="font-style:italic">n</span></sub> } 
-and for each <span style="font-style:italic">nontermroot</span> defined by any <span style="font-style:italic">rule</span>&#X2032;
-which is declared as a subrule of this rule. </p><p>For a production  <span style="font-style:italic">prod</span> &#X202F; = 
-</p><table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><span style="font-family:monospace">|</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">element</span><sub>1</sub>&#X2004;&#X202F;&#X2004;..&#X2004;&#X202F;&#X2004;<span style="font-style:italic">element</span><sub><span style="font-style:italic">m</span></sub>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">::</span>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">::</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">prodname</span></td></tr>
+</table><p>(1) for each <span class="it">nontermroot</span> in the set
+{<span class="it">nontermroot</span><sub>1</sub> &#X202F; , &#X202F; .. &#X202F; , &#X202F;
+<span class="it">nontermroot</span><sub><span class="it">n</span></sub> } 
+and for each <span class="it">nontermroot</span> defined by any <span class="it">rule</span>&#X2032;
+which is declared as a subrule of this rule. </p><p>For a production  <span class="it">prod</span> &#X202F; = 
+</p><table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><span class="tt">|</span> &#X202F; <span class="it">element</span><sub>1</sub> &#X202F; .. &#X202F; <span class="it">element</span><sub><span class="it">m</span></sub> &#X202F; <span class="tt">::</span> &#X202F; <span class="tt">::</span> &#X202F; <span class="it">prodname</span></td></tr>
 </table><p>
 we have
-</p><table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" >&#X2004;[[<span style="font-style:italic">prod</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" >[[<span style="font-style:italic">element</span><sub>1</sub>]]&#X2004;&#X202F;&#X2004;..&#X2004;&#X202F;&#X2004;[[<span style="font-style:italic">element</span><sub><span style="font-style:italic">m</span></sub>]]&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">:</span><span style="font-style:italic">prodname</span><span style="font-family:monospace">:</span>&#X202F;&#X2004;[[<span style="font-style:italic">element</span><sub>1</sub>]]&#X2004;&#X202F;&#X2004;..&#X2004;&#X202F;&#X2004;[[<span style="font-style:italic">element</span><sub><span style="font-style:italic">m</span></sub>]]&#X2004;
+</p><table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" > [[<span class="it">prod</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" >[[<span class="it">element</span><sub>1</sub>]] &#X202F; .. &#X202F; [[<span class="it">element</span><sub><span class="it">m</span></sub>]] </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span class="tt">:</span><span class="it">prodname</span><span class="tt">:</span>&#X202F; [[<span class="it">element</span><sub>1</sub>]] &#X202F; .. &#X202F; [[<span class="it">element</span><sub><span class="it">m</span></sub>]] 
 </td></tr>
 </table></td></tr>
 </table><p>For an element there are various cases. 
-</p><ol class="enumerate" type=1><li class="li-enumerate">For a terminal <span style="font-style:italic">terminal</span>
-<table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" >&#X2004;[[<span style="font-style:italic">terminal</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">terminal</span></td></tr>
+</p><ol class="enumerate" type=1><li class="li-enumerate">For a terminal <span class="it">terminal</span>
+<table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" > [[<span class="it">terminal</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" ><span class="it">terminal</span></td></tr>
 </table></td></tr>
 </table>
-</li><li class="li-enumerate">For a nonterminal <span style="font-style:italic">nontermroot</span> &#X202F; <span style="font-style:italic">suffix</span>
-<table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" >&#X2004;[[<span style="font-style:italic">nontermroot</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">suffix</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >[[<span style="font-style:italic">rule</span>]]&#X2004;
+</li><li class="li-enumerate">For a nonterminal <span class="it">nontermroot</span> &#X202F; <span class="it">suffix</span>
+<table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" > [[<span class="it">nontermroot</span> &#X202F; <span class="it">suffix</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >[[<span class="it">rule</span>]] 
 </td></tr>
 </table></td></tr>
 </table>
-where <span style="font-style:italic">rule</span> includes <span style="font-style:italic">nontermroot</span> among the
-nonterminal roots it defines. (Note that this does not depend on what <span style="font-style:italic">suffix</span> was used in the grammar, and similarly for the <span style="font-style:italic">metavar</span> case below.)</li><li class="li-enumerate">For an index variable <span style="font-style:italic">indexvarroot</span>
-<table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" >&#X2004;[[<span style="font-style:italic">indexvarroot</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">indexvarroot</span>&#X2032;
+where <span class="it">rule</span> includes <span class="it">nontermroot</span> among the
+nonterminal roots it defines. (Note that this does not depend on what <span class="it">suffix</span> was used in the grammar, and similarly for the <span class="it">metavar</span> case below.)</li><li class="li-enumerate">For an index variable <span class="it">indexvarroot</span>
+<table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" > [[<span class="it">indexvarroot</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" ><span class="it">indexvarroot</span>&#X2032;
 </td></tr>
 </table></td></tr>
 </table>
-for each <span style="font-style:italic">indexvarroot</span>&#X2032; defined by the <span style="font-family:monospace">indexvar</span>
-definition that defines <span style="font-style:italic">indexvarroot</span>.</li><li class="li-enumerate">For a metavariable <span style="font-style:italic">metavarroot</span> &#X202F; <span style="font-style:italic">suffix</span>
-<table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" >&#X2004;[[<span style="font-style:italic">metavarroot</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">suffix</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">metavarroot</span>&#X2032;&#X2004;<span style="font-style:italic">suffix</span></td><td style="text-align:left;white-space:nowrap" >(1)&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">variable</span>&#X2004;</td></tr>
+for each <span class="it">indexvarroot</span>&#X2032; defined by the <span class="tt">indexvar</span>
+definition that defines <span class="it">indexvarroot</span>.</li><li class="li-enumerate">For a metavariable <span class="it">metavarroot</span> &#X202F; <span class="it">suffix</span>
+<table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" > [[<span class="it">metavarroot</span> &#X202F; <span class="it">suffix</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span class="it">metavarroot</span>&#X2032; <span class="it">suffix</span></td><td style="text-align:left;white-space:nowrap" >(1) </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span class="it">variable</span> </td></tr>
 </table></td></tr>
 </table>
-(1) for each <span style="font-style:italic">metavarroot</span>&#X2032; defined by the <span style="font-family:monospace">metavar</span>
-definition that defines <span style="font-style:italic">metavarroot</span>.
-(2) where <span style="font-style:italic">variable</span> ranges over all the strings defined by
-the <span style="font-family:monospace">lex</span> regexp of the <span style="font-family:monospace">metavar</span>
-definition that defines <span style="font-style:italic">metavarroot</span>, except for any string
+(1) for each <span class="it">metavarroot</span>&#X2032; defined by the <span class="tt">metavar</span>
+definition that defines <span class="it">metavarroot</span>.
+(2) where <span class="it">variable</span> ranges over all the strings defined by
+the <span class="tt">lex</span> regexp of the <span class="tt">metavar</span>
+definition that defines <span class="it">metavarroot</span>, except for any string
 which can be parsed as a nonterminal, metavariable or terminal of the syntax
 definition.
-</li><li class="li-enumerate">A list form element <span style="font-style:italic">element</span> could be any of the following, either without a separating terminal:
-<table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">element</span><sub>1</sub>&#X2004;..&#X2004;<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>&#X2004;
-&#X202F;&#X2004;<span style="font-style:italic">dots</span>&#X2004;&#X202F;
-<span style="font-style:italic">element</span>&#X2032;<sub>1</sub>&#X2004;..&#X2004;<span style="font-style:italic">element</span>&#X2032;<sub><span style="font-style:italic">n</span></sub>&#X2004;
+</li><li class="li-enumerate">A list form element <span class="it">element</span> could be any of the following, either without a separating terminal:
+<table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" ><span class="it">element</span><sub>1</sub> .. <span class="it">element</span><sub><span class="it">n</span></sub> 
+&#X202F; <span class="it">dots</span> &#X202F;
+<span class="it">element</span>&#X2032;<sub>1</sub> .. <span class="it">element</span>&#X2032;<sub><span class="it">n</span></sub> 
 </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">&lt;/</span>&#X2004;&#X202F;<span style="font-style:italic">element</span><sub>1</sub>&#X2004;..&#X2004;<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">//</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">/&gt;</span>&#X2004;
+<tr><td style="text-align:left;white-space:nowrap" ><span class="tt">&lt;/</span> &#X202F;<span class="it">element</span><sub>1</sub> .. <span class="it">element</span><sub><span class="it">n</span></sub> &#X202F; <span class="tt">//</span> &#X202F; <span class="it">indexvar</span> &#X202F; <span class="tt">/&gt;</span> 
 </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">&lt;/</span>&#X2004;&#X202F;<span style="font-style:italic">element</span><sub>1</sub>&#X2004;..&#X2004;<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">//</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">IN</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2032;&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">/&gt;</span>&#X2004;
+<tr><td style="text-align:left;white-space:nowrap" ><span class="tt">&lt;/</span> &#X202F;<span class="it">element</span><sub>1</sub> .. <span class="it">element</span><sub><span class="it">n</span></sub> &#X202F; <span class="tt">//</span> &#X202F; <span class="it">indexvar</span> &#X202F; <span class="tt">IN</span> &#X202F; <span class="it">indexvar</span>&#X2032; &#X202F; <span class="tt">/&gt;</span> 
 </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">&lt;/</span>&#X2004;&#X202F;<span style="font-style:italic">element</span><sub>1</sub>&#X2004;..&#X2004;<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">//</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">IN</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">number</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">dots</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2032;&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">/&gt;</span>&#X2004;
+<tr><td style="text-align:left;white-space:nowrap" ><span class="tt">&lt;/</span> &#X202F;<span class="it">element</span><sub>1</sub> .. <span class="it">element</span><sub><span class="it">n</span></sub> &#X202F; <span class="tt">//</span> &#X202F; <span class="it">indexvar</span> &#X202F; <span class="tt">IN</span> &#X202F; <span class="it">number</span> &#X202F; <span class="it">dots</span> &#X202F; <span class="it">indexvar</span>&#X2032; &#X202F; <span class="tt">/&gt;</span> 
 </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">&lt;/</span>&#X2004;&#X202F;<span style="font-style:italic">element</span><sub>1</sub>&#X2004;..&#X2004;<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">//</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">IN</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">number</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">dots</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2032;<span style="font-family:monospace">-1</span>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">/&gt;</span>&#X2004;
+<tr><td style="text-align:left;white-space:nowrap" ><span class="tt">&lt;/</span> &#X202F;<span class="it">element</span><sub>1</sub> .. <span class="it">element</span><sub><span class="it">n</span></sub> &#X202F; <span class="tt">//</span> &#X202F; <span class="it">indexvar</span> &#X202F; <span class="tt">IN</span> &#X202F; <span class="it">number</span> &#X202F; <span class="it">dots</span> &#X202F; <span class="it">indexvar</span>&#X2032;<span class="tt">-1</span> &#X202F; <span class="tt">/&gt;</span> 
 </td></tr>
 </table></td></tr>
 </table>
 or with a separating terminal:
-<table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">element</span><sub>1</sub>&#X2004;..&#X2004;<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>&#X2004;
-&#X202F;&#X2004;<span style="font-style:italic">terminal</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">dots</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">terminal</span>&#X2004;&#X202F;
-<span style="font-style:italic">element</span>&#X2032;<sub>1</sub>&#X2004;..&#X2004;<span style="font-style:italic">element</span>&#X2032;<sub><span style="font-style:italic">n</span></sub>&#X2004;
+<table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" ><span class="it">element</span><sub>1</sub> .. <span class="it">element</span><sub><span class="it">n</span></sub> 
+&#X202F; <span class="it">terminal</span> &#X202F; <span class="it">dots</span> &#X202F; <span class="it">terminal</span> &#X202F;
+<span class="it">element</span>&#X2032;<sub>1</sub> .. <span class="it">element</span>&#X2032;<sub><span class="it">n</span></sub> 
 </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">&lt;/</span>&#X2004;&#X202F;<span style="font-style:italic">element</span><sub>1</sub>&#X2004;..&#X2004;<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">//</span>&#X2004;&#X202F;<span style="font-style:italic">terminal</span>&#X202F;<span style="font-family:monospace">//</span>&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">/&gt;</span>&#X2004;
+<tr><td style="text-align:left;white-space:nowrap" ><span class="tt">&lt;/</span> &#X202F;<span class="it">element</span><sub>1</sub> .. <span class="it">element</span><sub><span class="it">n</span></sub> &#X202F; <span class="tt">//</span> &#X202F;<span class="it">terminal</span>&#X202F;<span class="tt">//</span>&#X202F; <span class="it">indexvar</span> &#X202F; <span class="tt">/&gt;</span> 
 </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">&lt;/</span>&#X2004;&#X202F;<span style="font-style:italic">element</span><sub>1</sub>&#X2004;..&#X2004;<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">//</span>&#X2004;&#X202F;<span style="font-style:italic">terminal</span>&#X202F;<span style="font-family:monospace">//</span>&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">IN</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2032;&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">/&gt;</span>&#X2004;
+<tr><td style="text-align:left;white-space:nowrap" ><span class="tt">&lt;/</span> &#X202F;<span class="it">element</span><sub>1</sub> .. <span class="it">element</span><sub><span class="it">n</span></sub> &#X202F; <span class="tt">//</span> &#X202F;<span class="it">terminal</span>&#X202F;<span class="tt">//</span>&#X202F; <span class="it">indexvar</span> &#X202F; <span class="tt">IN</span> &#X202F; <span class="it">indexvar</span>&#X2032; &#X202F; <span class="tt">/&gt;</span> 
 </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">&lt;/</span>&#X2004;&#X202F;<span style="font-style:italic">element</span><sub>1</sub>&#X2004;..&#X2004;<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">//</span>&#X2004;&#X202F;<span style="font-style:italic">terminal</span>&#X202F;<span style="font-family:monospace">//</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">IN</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">number</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">dots</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2032;&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">/&gt;</span>&#X2004;
+<tr><td style="text-align:left;white-space:nowrap" ><span class="tt">&lt;/</span> &#X202F;<span class="it">element</span><sub>1</sub> .. <span class="it">element</span><sub><span class="it">n</span></sub> &#X202F; <span class="tt">//</span> &#X202F;<span class="it">terminal</span>&#X202F;<span class="tt">//</span> &#X202F; <span class="it">indexvar</span> &#X202F; <span class="tt">IN</span> &#X202F; <span class="it">number</span> &#X202F; <span class="it">dots</span> &#X202F; <span class="it">indexvar</span>&#X2032; &#X202F; <span class="tt">/&gt;</span> 
 </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">&lt;/</span>&#X2004;&#X202F;<span style="font-style:italic">element</span><sub>1</sub>&#X2004;..&#X2004;<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">//</span>&#X2004;&#X202F;<span style="font-style:italic">terminal</span>&#X202F;<span style="font-family:monospace">//</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">IN</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">number</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">dots</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2032;<span style="font-family:monospace">-1</span>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">/&gt;</span>&#X2004;
+<tr><td style="text-align:left;white-space:nowrap" ><span class="tt">&lt;/</span> &#X202F;<span class="it">element</span><sub>1</sub> .. <span class="it">element</span><sub><span class="it">n</span></sub> &#X202F; <span class="tt">//</span> &#X202F;<span class="it">terminal</span>&#X202F;<span class="tt">//</span> &#X202F; <span class="it">indexvar</span> &#X202F; <span class="tt">IN</span> &#X202F; <span class="it">number</span> &#X202F; <span class="it">dots</span> &#X202F; <span class="it">indexvar</span>&#X2032;<span class="tt">-1</span> &#X202F; <span class="tt">/&gt;</span> 
 </td></tr>
 </table></td></tr>
 </table>
-In any of these cases the interpretation [[<span style="font-style:italic">element</span>]] is the lists (separated by the <span style="font-style:italic">terminal</span> if one was specified) of concrete list entries and of list forms.
-Without a separating <span style="font-style:italic">terminal</span>, this is: 
-<table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" >&#X2004;[[<span style="font-style:italic">element</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >(<span style="font-style:italic">concrete</span>_<span style="font-style:italic">list</span>_<span style="font-style:italic">entry</span>&#X2004;|&#X2004;<span style="font-style:italic">list</span>_<span style="font-style:italic">form</span>)<sup>*</sup></td><td style="text-align:left;white-space:nowrap" >(2),&#X2004;(3)</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">concrete</span>_<span style="font-style:italic">list</span>_<span style="font-style:italic">entry</span></td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >[[<span style="font-style:italic">element</span><sub>1</sub>]]&#X2004;&#X202F;&#X2004;..&#X2004;&#X202F;&#X2004;[[<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>]]&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">list</span>_<span style="font-style:italic">form</span></td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" >[[<span style="font-style:italic">element</span><sub>1</sub>]]&#X2004;&#X202F;&#X2004;..&#X2004;&#X202F;&#X2004;[[<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>]]&#X2004;
-&#X202F;<span style="font-style:italic">dots</span>&#X2032;&#X202F;
-[[<span style="font-style:italic">element</span>&#X2032;<sub>1</sub>]]&#X2004;&#X202F;&#X2004;..&#X2004;&#X202F;&#X2004;[[<span style="font-style:italic">element</span>&#X2032;<sub><span style="font-style:italic">n</span></sub>]]</td><td style="text-align:left;white-space:nowrap" >(1)&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">&lt;/</span>&#X2004;&#X202F;[[<span style="font-style:italic">element</span><sub>1</sub>]]&#X2004;..&#X2004;[[<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>]]&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">//</span>&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2033;&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">/&gt;</span>&#X2004;
+In any of these cases the interpretation [[<span class="it">element</span>]] is the lists (separated by the <span class="it">terminal</span> if one was specified) of concrete list entries and of list forms.
+Without a separating <span class="it">terminal</span>, this is: 
+<table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" > [[<span class="it">element</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >(<span class="it">concrete</span>_<span class="it">list</span>_<span class="it">entry</span> | <span class="it">list</span>_<span class="it">form</span>)<sup>*</sup></td><td style="text-align:left;white-space:nowrap" >(2), (3)</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span class="it">concrete</span>_<span class="it">list</span>_<span class="it">entry</span></td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >[[<span class="it">element</span><sub>1</sub>]] &#X202F; .. &#X202F; [[<span class="it">element</span><sub><span class="it">n</span></sub>]] </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span class="it">list</span>_<span class="it">form</span></td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" >[[<span class="it">element</span><sub>1</sub>]] &#X202F; .. &#X202F; [[<span class="it">element</span><sub><span class="it">n</span></sub>]] 
+&#X202F;<span class="it">dots</span>&#X2032;&#X202F;
+[[<span class="it">element</span>&#X2032;<sub>1</sub>]] &#X202F; .. &#X202F; [[<span class="it">element</span>&#X2032;<sub><span class="it">n</span></sub>]]</td><td style="text-align:left;white-space:nowrap" >(1) </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span class="tt">&lt;/</span> &#X202F;[[<span class="it">element</span><sub>1</sub>]] .. [[<span class="it">element</span><sub><span class="it">n</span></sub>]] &#X202F; <span class="tt">//</span>&#X202F; <span class="it">indexvar</span>&#X2033; &#X202F; <span class="tt">/&gt;</span> 
 </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">&lt;/</span>&#X2004;&#X202F;[[<span style="font-style:italic">element</span><sub>1</sub>]]&#X2004;..&#X2004;[[<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>]]&#X202F;<span style="font-family:monospace">//</span>&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2033;&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">IN</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2034;&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">/&gt;</span>&#X2004;
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span class="tt">&lt;/</span> &#X202F;[[<span class="it">element</span><sub>1</sub>]] .. [[<span class="it">element</span><sub><span class="it">n</span></sub>]]&#X202F;<span class="tt">//</span>&#X202F; <span class="it">indexvar</span>&#X2033; &#X202F; <span class="tt">IN</span> &#X202F; <span class="it">indexvar</span>&#X2034; &#X202F; <span class="tt">/&gt;</span> 
 </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">&lt;/</span>&#X2004;&#X202F;[[<span style="font-style:italic">element</span><sub>1</sub>]]&#X2004;..&#X2004;[[<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>]]&#X202F;<span style="font-family:monospace">//</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2033;&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">IN</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">number</span>&#X2032;&#X2004;&#X202F;&#X2004;<span style="font-style:italic">dots</span>&#X2032;&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2034;&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">/&gt;</span>&#X2004;
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span class="tt">&lt;/</span> &#X202F;[[<span class="it">element</span><sub>1</sub>]] .. [[<span class="it">element</span><sub><span class="it">n</span></sub>]]&#X202F;<span class="tt">//</span> &#X202F; <span class="it">indexvar</span>&#X2033; &#X202F; <span class="tt">IN</span> &#X202F; <span class="it">number</span>&#X2032; &#X202F; <span class="it">dots</span>&#X2032; &#X202F; <span class="it">indexvar</span>&#X2034; &#X202F; <span class="tt">/&gt;</span> 
 </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">&lt;/</span>&#X2004;&#X202F;[[<span style="font-style:italic">element</span><sub>1</sub>]]&#X2004;..&#X2004;[[<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>]]&#X202F;<span style="font-family:monospace">//</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2033;&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">IN</span>&#X2004;&#X202F;&#X2004;<span style="font-style:italic">number</span>&#X2032;&#X2004;&#X202F;&#X2004;<span style="font-style:italic">dots</span>&#X2032;&#X2004;&#X202F;&#X2004;<span style="font-style:italic">indexvar</span>&#X2034;<span style="font-family:monospace">-1</span>&#X2004;&#X202F;&#X2004;<span style="font-family:monospace">/&gt;</span>&#X2004;
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span class="tt">&lt;/</span> &#X202F;[[<span class="it">element</span><sub>1</sub>]] .. [[<span class="it">element</span><sub><span class="it">n</span></sub>]]&#X202F;<span class="tt">//</span> &#X202F; <span class="it">indexvar</span>&#X2033; &#X202F; <span class="tt">IN</span> &#X202F; <span class="it">number</span>&#X2032; &#X202F; <span class="it">dots</span>&#X2032; &#X202F; <span class="it">indexvar</span>&#X2034;<span class="tt">-1</span> &#X202F; <span class="tt">/&gt;</span> 
 </td></tr>
 </table></td></tr>
 </table>
 This is subject to constraints: (1) that 
-[[<span style="font-style:italic">element</span><sub>1</sub>]] &#X202F; .. &#X202F; [[<span style="font-style:italic">element</span><sub><span style="font-style:italic">n</span></sub>]]
+[[<span class="it">element</span><sub>1</sub>]] &#X202F; .. &#X202F; [[<span class="it">element</span><sub><span class="it">n</span></sub>]]
 and
-[[<span style="font-style:italic">element</span>&#X2032;<sub>1</sub>]] &#X202F; .. &#X202F; [[<span style="font-style:italic">element</span>&#X2032;<sub><span style="font-style:italic">n</span></sub>]] can be
+[[<span class="it">element</span>&#X2032;<sub>1</sub>]] &#X202F; .. &#X202F; [[<span class="it">element</span>&#X2032;<sub><span class="it">n</span></sub>]] can be
 anti-unified with exactly one varying index; (2) if the list has only
 concrete entries (i.e., no list forms), its length must meet
-the constraint of any <span style="font-style:italic">dots</span> in the
-<span style="font-style:italic">element</span>.<p>With a separating <span style="font-style:italic">terminal</span>, we have: 
-</p><table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" >&#X2004;[[<span style="font-style:italic">element</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >&#X454;&#X2004;|&#X2004;(<span style="font-style:italic">concrete</span>_<span style="font-style:italic">list</span>_<span style="font-style:italic">entry</span>&#X2004;|&#X2004;<span style="font-style:italic">list</span>_<span style="font-style:italic">form</span>)
-(<span style="font-style:italic">terminal</span>&#X2004;(<span style="font-style:italic">concrete</span>_<span style="font-style:italic">list</span>_<span style="font-style:italic">entry</span>&#X2004;|&#X2004;<span style="font-style:italic">list</span>_<span style="font-style:italic">form</span>))<sup>*</sup>
+the constraint of any <span class="it">dots</span> in the
+<span class="it">element</span>.<p>With a separating <span class="it">terminal</span>, we have: 
+</p><table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" > [[<span class="it">element</span>]]</td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >&#X454; | (<span class="it">concrete</span>_<span class="it">list</span>_<span class="it">entry</span> | <span class="it">list</span>_<span class="it">form</span>)
+(<span class="it">terminal</span> (<span class="it">concrete</span>_<span class="it">list</span>_<span class="it">entry</span> | <span class="it">list</span>_<span class="it">form</span>))<sup>*</sup>
 </td></tr>
 </table></td></tr>
 </table></li></ol><p>In the above 
-</p><table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">dots</span></td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">..</span>&#X2004;|&#X2004;<span style="font-family:monospace">...</span>&#X2004;|&#X2004;<span style="font-family:monospace">....</span>&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">number</span></td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">0</span>&#X2004;|&#X2004;<span style="font-family:monospace">1</span>&#X2004;&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">suffix</span></td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">suffix</span>_<span style="font-style:italic">item</span><sup>*</sup>&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">suffix</span>_<span style="font-style:italic">item</span></td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" >(<span style="font-family:monospace">0</span>&#X2004;|&#X2004;<span style="font-family:monospace">1</span>&#X2004;|<span style="font-family:monospace">2</span>&#X2004;|&#X2004;<span style="font-family:monospace">3</span>&#X2004;|<span style="font-family:monospace">4</span>&#X2004;|&#X2004;<span style="font-family:monospace">5</span>&#X2004;|<span style="font-family:monospace">6</span>&#X2004;|&#X2004;<span style="font-family:monospace">7</span>&#X2004;|<span style="font-family:monospace">8</span>&#X2004;|&#X2004;<span style="font-family:monospace">9</span>)<sup>+</sup></td><td style="text-align:left;white-space:nowrap" >(longest match)&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">_</span>&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span style="font-family:monospace">&#X2019;</span>&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">indexvar</span>&#X2004;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span style="font-style:italic">indexvar</span><span style="font-family:monospace">-1</span>&#X2004;</td></tr>
+</p><table class="display dcenter"><tr style="vertical-align:middle"><td class="dcell"><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" ><span class="it">dots</span></td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" ><span class="tt">..</span> | <span class="tt">...</span> | <span class="tt">....</span> </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span class="it">number</span></td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" ><span class="tt">0</span> | <span class="tt">1</span> </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span class="it">suffix</span></td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" ><span class="it">suffix</span>_<span class="it">item</span><sup>*</sup> </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span class="it">suffix</span>_<span class="it">item</span></td><td style="text-align:center;white-space:nowrap" >::=</td><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" >(<span class="tt">0</span> | <span class="tt">1</span> |<span class="tt">2</span> | <span class="tt">3</span> |<span class="tt">4</span> | <span class="tt">5</span> |<span class="tt">6</span> | <span class="tt">7</span> |<span class="tt">8</span> | <span class="tt">9</span>)<sup>+</sup></td><td style="text-align:left;white-space:nowrap" >(longest match) </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span class="tt">_</span> </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span class="tt">&#X2019;</span> </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span class="it">indexvar</span> </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td><td style="text-align:center;white-space:nowrap" >|</td><td style="text-align:left;white-space:nowrap" ><span class="it">indexvar</span><span class="tt">-1</span> </td></tr>
 </table></td></tr>
 </table><p>Further, whitespace (<code class="verb">' '|'\010'|'\009'|'\013'|'\012'</code>) is allowed before any token except a those in a suffix, and nonterminals, metavariables, index variables, and terminals that end with an alphanumeric character, must not be followed by an alphanumeric character.</p><p>The tool also builds a parser
-for concrete terms, with fake nonterminal roots <span style="font-family:monospace">concrete_ntr</span>
-for each primary <span style="font-family:monospace">ntr</span> of the syntax definition. One can
-switch to concrete-term parsing with a <span style="font-family:monospace">:concrete:</span> annotation,
+for concrete terms, with fake nonterminal roots <span class="tt">concrete_ntr</span>
+for each primary <span class="tt">ntr</span> of the syntax definition. One can
+switch to concrete-term parsing with a <span class="tt">:concrete:</span> annotation,
 as in the example 
 </p><pre class="verbatim"><span style="font-size:small">\[ [[ :concrete: \Z1&lt;:Top. \x:Z1.x ]]\]
 </span></pre><p><span style="font-size:small">
@@ -3178,27 +3187,27 @@ <h2 id="sec64" class="section">23&#X2003;Reference: The language of symbolic ter
 metavariables, no list dot forms or comprehensions, etc.</p><p>Parsing of terms is done with a scannerless GLR parser over character-list
 inputs. The parser
 searches for all parses of the input. If none are found, the ASCII
-and TeX output are annotated <span style="font-family:monospace">no parses</span>, with a copy of the
-input with <span style="font-family:monospace">***</span> inserted at the point where the last token was
+and TeX output are annotated <span class="tt">no parses</span>, with a copy of the
+input with <span class="tt">***</span> inserted at the point where the last token was
 read. This is often at the point of the error (though if, for
 example, a putative dot form is read but the two element lists cannot
 be anti-unified, it will be after the point of the error). 
 If multiple parses are found, the TeX output is annotated
-<span style="font-family:monospace">multiple parses</span> and the different parses are output to the
+<span class="tt">multiple parses</span> and the different parses are output to the
 console in detail during the Ott run.</p><p>The GLR parser 
 achieves reasonable performance on the small symbolic terms that are
 typical in semantic rules. Its performance on large (whole-program
 size) examples is untested.</p>
 <!--TOC section id="sec65" Reference: Generation of proof assistant definitions-->
 <h2 id="sec65" class="section">24&#X2003;Reference: Generation of proof assistant definitions</h2><!--SEC END --><p><a id="a42"></a>This section briefly summarises the steps involved in the generation
-of proof assistant definitions from an Ott source file. For a description of the locally-nameless backend, refer to <a href="http://moscova.inria.fr/&#XA0;zappa/projects/ln_ott/"><span style="font-family:monospace">http://moscova.inria.fr/&#XA0;zappa/projects/ln_ott/</span></a>.
+of proof assistant definitions from an Ott source file. For a description of the locally-nameless backend, refer to <a href="http://moscova.inria.fr/&#XA0;zappa/projects/ln_ott/"><span class="tt">http://moscova.inria.fr/&#XA0;zappa/projects/ln_ott/</span></a>.
 </p>
 <!--TOC subsection id="sec66" Generation of types-->
 <h3 id="sec66" class="subsection">24.1&#X2003;Generation of types</h3><!--SEC END --><ul class="itemize"><li class="li-itemize">The primary metavariable roots and primary nonterminal roots are used
 directly as the names of proof assistant types, except where they
 have a hom specifying a root-overriding string.
 </li><li class="li-itemize">Type abbreviation declarations are produced for metavars, in the
-source-file order, skipping metavars or nonterminals defined with <span style="color:#A51815"><span style="font-family:monospace">phantom</span></span>.
+source-file order, skipping metavars or nonterminals defined with <span style="color:#A51815"><span class="tt">phantom</span></span>.
 </li><li class="li-itemize">Type generation considers each rule of the user&#X2019;s source grammar
 except those for <code class="verb">formula</code> and <code class="verb">terminals</code> (or the
 synthesized rules for the syntax of judgements or <code class="verb">user_syntax</code>).
@@ -3215,8 +3224,8 @@ <h3 id="sec66" class="subsection">24.1&#X2003;Generation of types</h3><!--SEC EN
 The (curried) constructor argument types are taken from the
 types associated with the metavariables and nonterminals mentioned
 in the production body. 
-</li><li class="li-itemize">Rules (within each <span style="color:#A51815"><span style="font-family:monospace">grammar</span></span> block, if <span style="font-family:monospace">-merge
-false</span>, or all rules, if <span style="font-family:monospace">-merge true</span>) are topologically sorted according to the dependency order
+</li><li class="li-itemize">Rules (within each <span style="color:#A51815"><span class="tt">grammar</span></span> block, if <span class="tt">-merge
+false</span>, or all rules, if <span class="tt">-merge true</span>) are topologically sorted according to the dependency order
 (a free-type rule directly depends on another if one of its non-meta
 productions includes a nonterminal of the other; dependencies for rules with a type-hom
 for the proof assistant in question
@@ -3347,111 +3356,111 @@ <h3 id="sec72" class="subsection">24.3&#X2003;Generation of relations</h3><!--SE
 </li></ul>
 <!--TOC section id="sec73" Reference: Summary of homomorphisms-->
 <h2 id="sec73" class="section">25&#X2003;Reference: Summary of homomorphisms</h2><!--SEC END --><p><a id="a41"></a>Homomorphisms can appear in various positions in an Ott source
-file. The table below summarises their meanings. A * indicates that arguments are meaningful for that usage (e.g.&#XA0;<span style="font-family:monospace"><span style="color:#007FFF">[[</span></span><span style="font-family:monospace">e1</span><span style="font-family:monospace"><span style="color:#007FFF">]]</span></span> in a production mentioning a nonterminal or metavariable
+file. The table below summarises their meanings. A * indicates that arguments are meaningful for that usage (e.g.&#XA0;<span class="tt"><span style="color:#007FFF">[[</span></span><span class="tt">e1</span><span class="tt"><span style="color:#007FFF">]]</span></span> in a production mentioning a nonterminal or metavariable
 <code class="verb">e1</code>).</p><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap"  colspan=3>a metavar or indexvar declaration, after one of the defined metavar/indexvar roots, or</td></tr>
 <tr><td style="text-align:left;white-space:nowrap"  colspan=3>a rule, after one of the defined nonterminal
 roots</td></tr>
 <tr><td class="hrule" colspan=3></td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">tex</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >LaTeX typesetting for symbolic variables with that root</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">isa</span></span>/<span style="color:#A51815"><span style="font-family:monospace">coq</span></span>/<span style="color:#A51815"><span style="font-family:monospace">hol</span></span>/<span style="color:#A51815"><span style="font-family:monospace">ocaml</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle/Coq/HOL/OCaml root overriding string (1) </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">repr-locally-nameless</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >use a locally-nameless representation (Coq backend only) </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">tex</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >LaTeX typesetting for symbolic variables with that root</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">isa</span></span>/<span style="color:#A51815"><span class="tt">coq</span></span>/<span style="color:#A51815"><span class="tt">hol</span></span>/<span style="color:#A51815"><span class="tt">ocaml</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle/Coq/HOL/OCaml root overriding string (1) </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">repr-locally-nameless</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >use a locally-nameless representation (Coq backend only) </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
-</table><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap"  colspan=3>a metavar or indexvar declaration, after the <span style="font-family:monospace">::=</span></td></tr>
+</table><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap"  colspan=3>a metavar or indexvar declaration, after the <span class="tt">::=</span></td></tr>
 <tr><td class="hrule" colspan=3></td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">isa</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle representation type </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">coq</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq representation type </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">hol</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >HOL representation type </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">ocaml</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >OCaml representation type </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">tex</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >LaTeX typesetting for symbolic variables </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">com</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >comment to appear in LaTeX syntax definition </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">coq-equality</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq proof script to decide equality over the representation type </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">coq-notation</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq sentence using <span style="font-family:monospace">Notation</span> for the representation type </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">coq-universe</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq universe (e.g.&#XA0;<span style="font-family:monospace">Type</span>) for the representation type </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">repr-locally-nameless</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >(Coq only) use a locally-nameless representation </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">phantom</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >suppress the representation type definition in theorem prover output </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">lex</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >regular expression for lexing concrete variables </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">texvar</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >LaTeX typesetting for concrete variables </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">isavar</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >Isabelle output for concrete variables </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">holvar</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >HOL output for concrete variables </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">ocamlvar</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >OCaml output for concrete variables </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">isa</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle representation type </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">coq</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq representation type </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">hol</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >HOL representation type </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">ocaml</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >OCaml representation type </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">tex</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >LaTeX typesetting for symbolic variables </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">com</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >comment to appear in LaTeX syntax definition </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">coq-equality</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq proof script to decide equality over the representation type </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">coq-notation</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq sentence using <span class="tt">Notation</span> for the representation type </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">coq-universe</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq universe (e.g.&#XA0;<span class="tt">Type</span>) for the representation type </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">repr-locally-nameless</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >(Coq only) use a locally-nameless representation </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">phantom</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >suppress the representation type definition in theorem prover output </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">lex</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >regular expression for lexing concrete variables </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">texvar</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >LaTeX typesetting for concrete variables </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">isavar</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >Isabelle output for concrete variables </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">holvar</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >HOL output for concrete variables </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">ocamlvar</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >OCaml output for concrete variables </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
-</table><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap"  colspan=3>a rule, after the <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></td></tr>
+</table><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap"  colspan=3>a rule, after the <span style="color:#007FFF"><span class="tt">::=</span></span></td></tr>
 <tr><td class="hrule" colspan=3></td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">isa</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle representation type, if a non-free type is required </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">coq</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq representation type, if a non-free type is required </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">hol</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >HOL representation type, if a non-free type is required </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">ocaml</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >OCaml representation type, if a non-free type is required </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">tex</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >LaTeX typesetting for symbolic variables </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">com</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >comment to appear in LaTeX syntax definition </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">coq-equality</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq proof script to decide equality over the representation type </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">coq-notation</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq sentence using <span style="font-family:monospace">Notation</span> for the representation type </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">coq-universe</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq universe (e.g.&#XA0;<span style="font-family:monospace">Type</span>) for the representation type </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">phantom</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >suppress the representation type definition in theorem prover output </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">aux</span></span></td><td style="text-align:center;white-space:nowrap" >(*)</td><td style="text-align:left;white-space:nowrap" >construct an auxiliary grammar rule with a single production </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">icho</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span style="font-family:monospace">coq</span></span>, <span style="color:#A51815"><span style="font-family:monospace">isa</span></span>, <span style="color:#A51815"><span style="font-family:monospace">hol</span></span>, and <span style="color:#A51815"><span style="font-family:monospace">ocaml</span></span> homs</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">ichlo</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span style="font-family:monospace">coq</span></span>,
-<span style="color:#A51815"><span style="font-family:monospace">isa</span></span>, <span style="color:#A51815"><span style="font-family:monospace">hol</span></span>, <span style="color:#A51815"><span style="font-family:monospace">lem</span></span>, and <span style="color:#A51815"><span style="font-family:monospace">ocaml</span></span> homs</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">ich</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span style="font-family:monospace">coq</span></span>, <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> and <span style="color:#A51815"><span style="font-family:monospace">hol</span></span> homs</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">ic</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span style="font-family:monospace">coq</span></span> and <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> homs</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">ch</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span style="font-family:monospace">coq</span></span> and <span style="color:#A51815"><span style="font-family:monospace">hol</span></span> homs</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">ih</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> and <span style="color:#A51815"><span style="font-family:monospace">hol</span></span> homs</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">isa</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle representation type, if a non-free type is required </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">coq</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq representation type, if a non-free type is required </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">hol</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >HOL representation type, if a non-free type is required </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">ocaml</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >OCaml representation type, if a non-free type is required </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">tex</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >LaTeX typesetting for symbolic variables </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">com</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >comment to appear in LaTeX syntax definition </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">coq-equality</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq proof script to decide equality over the representation type </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">coq-notation</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq sentence using <span class="tt">Notation</span> for the representation type </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">coq-universe</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq universe (e.g.&#XA0;<span class="tt">Type</span>) for the representation type </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">phantom</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >suppress the representation type definition in theorem prover output </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">aux</span></span></td><td style="text-align:center;white-space:nowrap" >(*)</td><td style="text-align:left;white-space:nowrap" >construct an auxiliary grammar rule with a single production </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">icho</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span class="tt">coq</span></span>, <span style="color:#A51815"><span class="tt">isa</span></span>, <span style="color:#A51815"><span class="tt">hol</span></span>, and <span style="color:#A51815"><span class="tt">ocaml</span></span> homs</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">ichlo</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span class="tt">coq</span></span>,
+<span style="color:#A51815"><span class="tt">isa</span></span>, <span style="color:#A51815"><span class="tt">hol</span></span>, <span style="color:#A51815"><span class="tt">lem</span></span>, and <span style="color:#A51815"><span class="tt">ocaml</span></span> homs</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">ich</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span class="tt">coq</span></span>, <span style="color:#A51815"><span class="tt">isa</span></span> and <span style="color:#A51815"><span class="tt">hol</span></span> homs</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">ic</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span class="tt">coq</span></span> and <span style="color:#A51815"><span class="tt">isa</span></span> homs</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">ch</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span class="tt">coq</span></span> and <span style="color:#A51815"><span class="tt">hol</span></span> homs</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">ih</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span class="tt">isa</span></span> and <span style="color:#A51815"><span class="tt">hol</span></span> homs</td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
 </table><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap"  colspan=3>a production</td></tr>
 <tr><td class="hrule" colspan=3></td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">isa</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >Isabelle output, for a non-free (meta) production </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">coq</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >Coq output, for a non-free (meta) production </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">hol</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >HOL output, for a non-free (meta) production </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">ocaml</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >OCaml output, for a non-free (meta) production </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">tex</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >LaTeX typesetting for symbolic terms </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">texlong</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >typeset as long production </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">com</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >comment to appear in LaTeX syntax definition </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">order</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >specify order of arguments to prover or Ocaml constructor</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">isasyn</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >Isabelle mixfix syntax output </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">isaprec</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle mixfix syntax precedence string </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">ich</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span style="font-family:monospace">coq</span></span>, <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> and <span style="color:#A51815"><span style="font-family:monospace">hol</span></span>homs</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">ic</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span style="font-family:monospace">coq</span></span> and <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> homs</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">ch</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span style="font-family:monospace">coq</span></span> and <span style="color:#A51815"><span style="font-family:monospace">hol</span></span> homs</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">ih</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span style="font-family:monospace">isa</span></span> and <span style="color:#A51815"><span style="font-family:monospace">hol</span></span> homs</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">isa</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >Isabelle output, for a non-free (meta) production </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">coq</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >Coq output, for a non-free (meta) production </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">hol</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >HOL output, for a non-free (meta) production </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">ocaml</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >OCaml output, for a non-free (meta) production </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">tex</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >LaTeX typesetting for symbolic terms </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">texlong</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >typeset as long production </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">com</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >comment to appear in LaTeX syntax definition </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">order</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >specify order of arguments to prover or Ocaml constructor</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">isasyn</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >Isabelle mixfix syntax output </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">isaprec</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle mixfix syntax precedence string </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">ich</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span class="tt">coq</span></span>, <span style="color:#A51815"><span class="tt">isa</span></span> and <span style="color:#A51815"><span class="tt">hol</span></span>homs</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">ic</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span class="tt">coq</span></span> and <span style="color:#A51815"><span class="tt">isa</span></span> homs</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">ch</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span class="tt">coq</span></span> and <span style="color:#A51815"><span class="tt">hol</span></span> homs</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">ih</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >shorthand for identical <span style="color:#A51815"><span class="tt">isa</span></span> and <span style="color:#A51815"><span class="tt">hol</span></span> homs</td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
-</table><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap"  colspan=3>a production of the <span style="font-family:monospace">terminals</span> grammar</td></tr>
+</table><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap"  colspan=3>a production of the <span class="tt">terminals</span> grammar</td></tr>
 <tr><td class="hrule" colspan=3></td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">isa</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle output, for terminals in default generated Isabelle mixfix declarations </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">tex</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >LaTeX default typesetting for terms </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">com</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >comment to appear in LaTeX syntax definition </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">isa</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle output, for terminals in default generated Isabelle mixfix declarations </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">tex</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >LaTeX default typesetting for terms </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">com</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >comment to appear in LaTeX syntax definition </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
-</table><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap"  colspan=3>a <span style="color:#A51815"><span style="font-family:monospace">defn</span></span>, before the <span style="color:#A51815"><span style="font-family:monospace">by</span></span></td></tr>
+</table><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap"  colspan=3>a <span style="color:#A51815"><span class="tt">defn</span></span>, before the <span style="color:#A51815"><span class="tt">by</span></span></td></tr>
 <tr><td class="hrule" colspan=3></td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">tex</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >LaTeX typesetting for symbolic terms </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">com</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >comment to appear in LaTeX syntax definition </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">isasyn</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >Isabelle mixfix syntax output </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">isaprec</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle mixfix syntax precedence string </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">lemwcf</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Lem witness, check, and functions spec for indrelns </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">tex</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >LaTeX typesetting for symbolic terms </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">com</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >comment to appear in LaTeX syntax definition </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">isasyn</span></span></td><td style="text-align:center;white-space:nowrap" >*</td><td style="text-align:left;white-space:nowrap" >Isabelle mixfix syntax output </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">isaprec</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle mixfix syntax precedence string </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">lemwcf</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Lem witness, check, and functions spec for indrelns </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
-<tr><td style="text-align:left;white-space:nowrap"  colspan=3>a <span style="color:#A51815"><span style="font-family:monospace">homs</span></span> section clause (for a production or a definition)</td></tr>
+<tr><td style="text-align:left;white-space:nowrap"  colspan=3>a <span style="color:#A51815"><span class="tt">homs</span></span> section clause (for a production or a definition)</td></tr>
 <tr><td class="hrule" colspan=3></td></tr>
-<tr><td style="text-align:left;white-space:nowrap"  colspan=3>as in the above production and <span style="color:#A51815"><span style="font-family:monospace">defn</span></span> forms</td></tr>
+<tr><td style="text-align:left;white-space:nowrap"  colspan=3>as in the above production and <span style="color:#A51815"><span class="tt">defn</span></span> forms</td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
-</table><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap"  colspan=3>a group of defns, after the <span style="color:#007FFF"><span style="font-family:monospace">::=</span></span></td></tr>
+</table><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap"  colspan=3>a group of defns, after the <span style="color:#007FFF"><span class="tt">::=</span></span></td></tr>
 <tr><td class="hrule" colspan=3></td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">coq-universe</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq universe (e.g.&#XA0;<span style="font-family:monospace">Type</span>) for the representation type </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">coq-universe</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Coq universe (e.g.&#XA0;<span class="tt">Type</span>) for the representation type </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" >&nbsp;</td></tr>
-</table><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap"  colspan=3>an <span style="color:#A51815"><span style="font-family:monospace">embed</span></span> section</td></tr>
+</table><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap"  colspan=3>an <span style="color:#A51815"><span class="tt">embed</span></span> section</td></tr>
 <tr><td class="hrule" colspan=3></td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">isa</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >embedded Isabelle output</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">coq</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >embedded Coq output</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">hol</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >embedded HOL output</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">ocaml</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >embedded OCaml output</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">tex</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >embedded LaTeX output</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">tex-preamble</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >embedded LaTeX output, appearing in the LaTeX preamble</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">coq-lib</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >do not generate definitions for the listed helper functions</td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">isa-auxfn-proof</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle proof script </td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">isa-subrule-proof</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle proof script </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">isa</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >embedded Isabelle output</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">coq</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >embedded Coq output</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">hol</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >embedded HOL output</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">ocaml</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >embedded OCaml output</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">tex</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >embedded LaTeX output</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">tex-preamble</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >embedded LaTeX output, appearing in the LaTeX preamble</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">coq-lib</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >do not generate definitions for the listed helper functions</td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">isa-auxfn-proof</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle proof script </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">isa-subrule-proof</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle proof script </td></tr>
 </table><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap"  colspan=3>in a subrule, substitution or function definition</td></tr>
 <tr><td class="hrule" colspan=3></td></tr>
-<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span style="font-family:monospace">isa-proof</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle proof script </td></tr>
+<tr><td style="text-align:left;white-space:nowrap" ><span style="color:#A51815"><span class="tt">isa-proof</span></span></td><td style="text-align:center;white-space:nowrap" >&nbsp;</td><td style="text-align:left;white-space:nowrap" >Isabelle proof script </td></tr>
 </table><p>(1) This is occasionally useful to work around a clash between a
 metavar or nonterminal primary root and a proof assistant symbol,
-e.g.&#XA0;<span style="font-family:monospace">value</span> in Isabelle or <span style="font-family:monospace">T</span> in HOL.</p>
+e.g.&#XA0;<span class="tt">value</span> in Isabelle or <span class="tt">T</span> in HOL.</p>
 <!--TOC section id="sec74" Reference: The Ott source grammar-->
 <h2 id="sec74" class="section">26&#X2003;Reference: The Ott source grammar</h2><!--SEC END --><p>
 This is automatically generated (by <code class="verb">mly-y2l</code>) from the
@@ -3862,7 +3871,7 @@ <h2 id="sec74" class="section">26&#X2003;Reference: The Ott source grammar</h2><
 <!--TOC section id="sec75" Reference: Examples-->
 <h2 id="sec75" class="section">27&#X2003;Reference: Examples</h2><!--SEC END --><p><a id="a33"></a>The project web page
 </p><blockquote class="quotation">
-<a href="http://www.cl.cam.ac.uk/users/pes20/ott/"><span style="font-family:monospace">http://www.cl.cam.ac.uk/users/pes20/ott/</span></a>
+<a href="http://www.cl.cam.ac.uk/users/pes20/ott/"><span class="tt">http://www.cl.cam.ac.uk/users/pes20/ott/</span></a>
 </blockquote><p>
 gives a variety of examples. Some of these, and additional
 small examples, are included in the distribution in the <code class="verb">tests</code>
@@ -3887,7 +3896,7 @@ <h2 id="sec75" class="section">27&#X2003;Reference: Examples</h2><!--SEC END -->
 <tr><td style="text-align:left;white-space:nowrap" ><code class="verb">test10_isasyn.ott</code></td><td style="text-align:left;white-space:nowrap" >Isabelle mixfix syntax example</td></tr>
 <tr><td style="text-align:left;white-space:nowrap" ><code class="verb">test10st_metatheoryScript.sml</code></td><td style="text-align:left;white-space:nowrap" >HOL proof script for type preservation and progress </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" > <code class="verb">test17.10.ott</code></td><td style="text-align:left;white-space:nowrap" >list comprehension examples</td></tr>
-</table><p>The <code class="verb">examples/tapl</code> directory contains several examples taken from the book &#X2018;Types and Programming Languages&#X2019; by Benjamin Pierce. The <span style="font-family:monospace">make</span> targets, listed below, combine Ott source files
+</table><p>The <code class="verb">examples/tapl</code> directory contains several examples taken from the book &#X2018;Types and Programming Languages&#X2019; by Benjamin Pierce. The <span class="tt">make</span> targets, listed below, combine Ott source files
 following roughly the TinkerType component structure used in TAPL.</p><table style="border-spacing:6px;border-collapse:separate;" class="cellpading0"><tr><td style="text-align:left;white-space:nowrap" > <code class="verb">sys-bool</code></td><td style="text-align:left;white-space:nowrap" >booleans (p34) </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" > <code class="verb">sys-arith</code></td><td style="text-align:left;white-space:nowrap" >arithmetic expressions (p41) </td></tr>
 <tr><td style="text-align:left;white-space:nowrap" > <code class="verb">sys-untyped</code></td><td style="text-align:left;white-space:nowrap" >untyped lambda-calculus with booleans </td></tr>
@@ -3911,7 +3920,43 @@ <h2 id="sec76" class="section">Acknowledgements</h2><!--SEC END --><p>
 Fellowship (Sewell), 
 EPSRC Programme Grant, EP/K008528/1 REMS <em>Rigorous Engineering of
 Mainstrem Systems</em>,
-and ANR grant ANR-06-SETI-010-02 (Zappa Nardelli). </p><!--BEGIN NOTES document-->
+and ANR grant ANR-06-SETI-010-02 (Zappa Nardelli). </p><!--TOC section id="sec77" References-->
+<h2 id="sec77" class="section">References</h2><!--SEC END --><dl class="thebibliography"><dt class="dt-thebibliography"><a id="poplmark">[ABF<sup>+</sup>05]</a></dt><dd class="dd-thebibliography">
+Brian&#XA0;E. Aydemir, Aaron Bohannon, Matthew Fairbairn, J.&#XA0;Nathan Foster,
+Benjamin&#XA0;C. Pierce, Peter Sewell, Dimitrios Vytiniotis, Geoffrey Washburn,
+Stephanie Weirich, and Steve Zdancewic.
+Mechanized metatheory for the masses: The POPLmark Challenge.
+In <em>Proc.&#XA0;TPHOLs, LNCS 3603</em>, 2005.</dd><dt class="dt-thebibliography"><a id="FGLMR96">[FGL<sup>+</sup>96]</a></dt><dd class="dd-thebibliography">
+C&#XE9;dric Fournet, Georges Gonthier, Jean-Jacques L&#XE9;vy, Luc Maranget, and
+Didier R&#XE9;my.
+A calculus of mobile agents.
+In <em>Proc.&#XA0;CONCUR &#X2019;96, LNCS 1119</em>, 1996.</dd><dt class="dt-thebibliography"><a id="Leroy-generativity">[Ler96]</a></dt><dd class="dd-thebibliography">
+Xavier Leroy.
+A syntactic theory of type generativity and sharing.
+<em>Journal of Functional Programming</em>, 6(5):667&#X2013;698, 1996.</dd><dt class="dt-thebibliography"><a id="LevinPierce99">[LP03]</a></dt><dd class="dd-thebibliography">
+Michael&#XA0;Y. Levin and Benjamin&#XA0;C. Pierce.
+Tinkertype: A language for playing with formal systems.
+<em>Journal of Functional Programming</em>, 13(2), March 2003.</dd><dt class="dt-thebibliography"><a id="Pierce:TypeSystems">[Pie02]</a></dt><dd class="dd-thebibliography">
+Benjamin&#XA0;C. Pierce.
+<em>Types and Programming Languages</em>.
+MIT Press, 2002.</dd><dt class="dt-thebibliography"><a id="ljam-sub">[SSP07]</a></dt><dd class="dd-thebibliography">
+Rok Strni&#X161;a, Peter Sewell, and Matthew Parkinson.
+The Java Module System: core design and semantic definition.
+In <em>Proceedings of </em><em>OOPSLA</em><em> 2007, the </em><em>22nd ACM SIGPLAN
+International Conference on Object-Oriented Programming, Systems, Languages
+and Applications (Montre</em><em>&#XE1;</em><em>l)</em>, October 2007.
+15pp.</dd><dt class="dt-thebibliography"><a id="ott-sub">[SZNO<sup>+</sup>07]</a></dt><dd class="dd-thebibliography">
+Peter Sewell, Francesco Zappa&#XA0;Nardelli, Scott Owens, Gilles Peskine, Thomas
+Ridge, Susmit Sarkar, and Rok&#XA0;Strni&#X161;a.
+Ott: Effective tool support for the working semanticist.
+In <em>Proceedings of ICFP 2007: </em><em>the 12th ACM SIGPLAN International
+Conference on Functional Programming (Freiburg)</em>, October 2007.
+12pp.</dd><dt class="dt-thebibliography"><a id="ott-jfp">[SZNO<sup>+</sup>10]</a></dt><dd class="dd-thebibliography">
+Peter Sewell, Francesco Zappa&#XA0;Nardelli, Scott Owens, Gilles Peskine, Thomas
+Ridge, Susmit Sarkar, and Rok&#XA0;Strni&#X161;a.
+Ott: Effective tool support for the working semanticist.
+<em>Journal of Functional Programming</em>, 20(1):70&#X2013;122, January 2010.
+Invited submission from ICFP 2007.</dd></dl><!--BEGIN NOTES document-->
 <hr class="footnoterule"><dl class="thefootnotes"><dt class="dt-thefootnotes"><a id="note1" href="#text1">1</a></dt><dd class="dd-thefootnotes"><div class="footnotetext">Strictly, clauses
 of primitive recursive function definitions from symbolic terms to strings, here of LaTeX code.</div></dd></dl>
 <!--END NOTES-->
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diff --git a/doc/top2.mng b/doc/top2.mng
index b243dd3..6d0e3c6 100644
--- a/doc/top2.mng
+++ b/doc/top2.mng
@@ -579,7 +579,7 @@ Grammar rules can include a \mykw{tex} hom specifying how all the
   type\mysym{,} t\mysym{,} s \mysym{::} Typ_ \mysym{::=}  \mysym{\mylb\mylb{}} \mykw{tex} \mybackslash{}mathsf\mylb{}\mysym{[[}type\mysym{]]}\myrb{} \mysym{\myrb\myrb{}} 
         \mysym{|} unit                  \mysym{::}   \mysym{::} unit   
         \mysym{|} type * type'          \mysym{::}   \mysym{::} pair   
-        \mysym{|} type -> type'         \mysym{::}   \mysym{::} fun    
+        \mysym{|} type -> type'         \mysym{::}   \mysym{::} func   
 \end{alltt}
 %Here that \verb+tex+ hom overrides the default typesetting with
 %\verb+\mathsf+.
@@ -1163,7 +1163,7 @@ and metavariables, or, for strictly concrete terms, to restrict to
 just the former  (and also to prohibit symbolic nonterminals).
 
 
-Figure~\mref{a46} combines the \myLaTeX{} and proof assistant
+Figure~\mref{a68} combines the \myLaTeX{} and proof assistant
 annotations of Sections \mref{a51} and \mref{a58}, adding a
 \texttt{\mysym{\mylb\mylb{}} \mykw{lex} alphanum\mysym{\myrb\myrb{}}}
 hom
@@ -1194,7 +1194,7 @@ and
 
 
 
-Figure~\mref{a46} also specifies an OCaml representation type for
+Figure~\mref{a68} also specifies an OCaml representation type for
 variables, with the \mykw{metavar} hom
 \texttt{\mysym{\mylb\mylb{}} \mykw{ocaml} int\mysym{\myrb\myrb{}}}.
 Executing 
