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<!-- <?php  print $separator; ?> -->
<!-- <a href="#what">What</a>  -->
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<!-- <a href="#why">Why</a>  -->
<!-- <?php  print $separator; ?> -->
<!-- <a href="#about">About</a>  -->
<!-- </br> -->


<!-- <h2><a name="what">What is Proof General?</a></h2> -->
<p>
<b>Proof General</b> is a generic interface for proof assistants, 
based on Emacs.
</p>
<p>
It 
works best under 
<a href="http://www.xemacs.org/">XEmacs</a>, but can also be used with 
<a href="ftp://prep.ai.mit.edu/pub/gnu/emacs/">FSF GNU Emacs</a>.
<br>
It is supplied ready-customized for several proof assistants:
</p>
<p>
 <table width=90%>
  <tr>
    <td align="centre">
      <img src="images/coq-badge.gif" width="110" height="35" alt="Coq badge"></td>
    <td>
     <b> Coq Proof General </b> for 
       <?php hlink("http://pauillac.inria.fr/coq/assis-eng.html",
		   "Coq","The Coq Home Page") ?>
       version 6.2
       <br>
	<div style="font-size: smaller">
         First crafted by 
         <a href="http://www.dcs.ed.ac.uk/~hhg">Healfdene Goguen</a>. 
         <br>
	 Currently maintained and developed by Patrick Loiseleur.
        </div>
    </td>
 </tr>
 <tr>
    <td align="centre">
      <img src="images/lego-badge.gif" width="123" height="33" alt="LEGO badge"></td>
    <td><b>LEGO Proof General</b>
       <?php hlink("http://www.dcs.ed.ac.uk/home/lego",
		   "LEGO","The LEGO Home Page") ?>
       version 1.3.1
       <br>
       <div style="font-size: smaller">
       First crafted by <a href="http://www.dcs.ed.ac.uk/~tms">Thomas Kleymann</a>
       and
        <a href="http://www.dcs.ed.ac.uk/~djs">Dilip Sequeira</a>.
       <br>
       Maintained by <a href="http://www.dur.ac.uk/~dcs1pcc/">Paul
       Callaghan</a>.
       </div>
    </td>
 </tr>
 <tr>
   <td align="centre">
	<img src="images/isabelle-badge.gif" width="128" height="37"
	      alt="Isabelle badge"></td>
   <td><b> Isabelle Proof General </b> for
       <?php hlink("http://www.cl.cam.ac.uk/Research/HVG/Isabelle/",
		    "Isabelle", "The Isabelle Home Page"); ?>
       version 98-1
       <br>
       <div style="font-size: smaller">
       Crafted and maintained by 
      <a href="http://www.dcs.ed.ac.uk/~da">David Aspinall</a>.
       </div>
   </td>
 </tr>
</table>
</p>

<p>
To see what Proof General looks like in use, have a look at this
<a href="screenshot.phtml">screenshot</a>.
</p>


<p>
You can download Proof General <?php link_root("download","here") ?>
or contact the developers 
<?php hlink("feedback.phtml","here","Feedback form")?>.
</p>