%title%

Isabelle

%body%

<p>

<h2>What is Isabelle?</h2>

Isabelle is a popular generic theorem proving environment developed at

Cambridge University (<a

href="http://www.cl.cam.ac.uk/users/lcp/">Larry Paulson</a>) and TU

Munich (<a href="http://www.in.tum.de/~nipkow/">Tobias Nipkow</a>).

<p>

These pages provide general information on Isabelle, more specific

information is available from the local pages

<ul>

<li><a

href="http://www.cl.cam.ac.uk/Research/HVG/Isabelle/cambridge.html"><strong>Isabelle

at Cambridge</strong></a>

<li><a href="http://isabelle.in.tum.de/munich.html"><strong>Isabelle

at Munich</strong></a>

</ul>

See there for information on projects done with Isabelle, mailing list

archives, research papers, the Isabelle bibliography, and Isabelle

workshops and courses.

<p>

<h2>Obtaining Isabelle</h2>

The <strong><!-- _GP_ distname --></strong> distribution is available

from several <a href="dist/index.html">mirror sites</a>.  It includes

source and binary packages and browsable documentation.

<p>

You can also browse the <a href="library/index.html">Isabelle theory

library</a>; the main logics are <a

href="library/HOL/index.html">HOL</a>, <a

href="library/HOLCF/index.html">HOLCF</a>, <a

href="library/FOL/index.html">FOL</a> and <a

href="library/ZF/index.html">ZF</a>.

<p>

<h2>Mailing list</h2>

Use the mailing list <a href="mailto:

isabelle-users@cl.cam.ac.uk">isabelle-users@cl.cam.ac.uk</a> 

and its <a href="ftp://ftp.cl.cam.ac.uk/ml/index.html">archive</a> to

discuss problems and results.  Why not <a

href="mailto:lcp@cl.cam.ac.uk">subscribe</a>?