|
16233
|
1 |
<?xml version='1.0' encoding='iso-8859-1' ?>
|
|
|
2 |
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
16240
|
3 |
<!-- $Id$ -->
|
|
16233
|
4 |
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
|
5 |
|
|
|
6 |
<head>
|
|
|
7 |
<title>Isabelle</title>
|
|
|
8 |
<?include file="//include/htmlheader.include.html"?>
|
|
|
9 |
</head>
|
|
|
10 |
|
|
|
11 |
<body class="main">
|
|
|
12 |
<?include file="//include/header.include.html"?>
|
|
|
13 |
<div class="hr"><hr/></div>
|
|
|
14 |
<?include file="//include/navigation.include.html"?>
|
|
|
15 |
<div class="hr"><hr/></div>
|
|
|
16 |
<div id="content">
|
|
|
17 |
<h2>What is Isabelle?</h2>
|
|
|
18 |
<p>
|
|
|
19 |
Isabelle is a popular generic theorem proving environment
|
|
|
20 |
developed at Cambridge University (<a
|
|
|
21 |
href="http://www.cl.cam.ac.uk/users/lcp/">Larry Paulson</a>)
|
|
|
22 |
and TU Munich (<a href="http://www.in.tum.de/~nipkow/">Tobias
|
|
|
23 |
Nipkow</a>). See the <a href="overview.html">Isabelle
|
|
|
24 |
overview</a>.
|
|
|
25 |
</p>
|
|
|
26 |
<p>
|
|
17143
|
27 |
This site provides general information on Isabelle, more
|
|
16300
|
28 |
specific information is available from the local sites
|
|
16233
|
29 |
</p>
|
|
|
30 |
|
|
|
31 |
<ul>
|
|
|
32 |
|
|
|
33 |
<li><a href="http://www.cl.cam.ac.uk/Research/HVG/Isabelle/cambridge.html"><strong>Isabelle
|
|
|
34 |
at Cambridge</strong></a></li>
|
|
|
35 |
|
|
|
36 |
<li><a href="http://www4.in.tum.de/proj/theoremprov/group.html"><strong>Isabelle
|
|
|
37 |
at Munich</strong></a></li>
|
|
|
38 |
|
|
|
39 |
</ul>
|
|
|
40 |
|
|
|
41 |
<p>
|
|
|
42 |
See there for information on projects done with Isabelle,
|
|
|
43 |
mailing list archives, research papers, the Isabelle
|
|
|
44 |
bibliography, and Isabelle workshops and courses.
|
|
|
45 |
</p>
|
|
|
46 |
|
|
|
47 |
<h2>Coming soon: Isabelle 2005</h2>
|
|
|
48 |
<p>New features in the upcoming Isabelle 2005 will include</p>
|
|
|
49 |
<ul>
|
|
|
50 |
<li>New commands for instantiating locales</li>
|
|
16296
|
51 |
<li>New command for finding theorems (by term patterns, as intro/elim/simp rules, etc.)</li>
|
|
16233
|
52 |
<li>New automatic transitivity reasoner</li>
|
|
|
53 |
<li>New command for ad-hoc theory viewing and printing</li>
|
|
|
54 |
<li>Much extended and improved theory of finite sets</li>
|
|
|
55 |
<li>New syntax that will allow > and >= in addition to < and
|
|
|
56 |
<=</li>
|
|
|
57 |
</ul>
|
|
|
58 |
|
|
|
59 |
<h2>Isabelle 2004</h2>
|
|
|
60 |
|
|
|
61 |
<p>New features in Isabelle 2004 include</p>
|
|
|
62 |
|
|
|
63 |
<ul>
|
|
|
64 |
<li>New image HOL4 with imported library from HOL4 system on top of
|
|
|
65 |
HOL-Complex (about 2500 additional theorems).</li>
|
|
|
66 |
|
|
|
67 |
<li>New theory Ring_and_Field with over 250 basic numerical laws,
|
|
|
68 |
all proved in axiomatic type classes for semirings, rings and fields.</li>
|
|
|
69 |
|
|
|
70 |
<li>New locale <code>ring</code> for non-commutative rings in HOL-Algebra.</li>
|
|
|
71 |
|
|
|
72 |
<li>Type <code>rat</code> of the rational numbers available in HOL-Complex.</li>
|
|
|
73 |
|
|
|
74 |
<li>New theory of matrices with an application to linear programming in HOL-Matrix.</li>
|
|
|
75 |
|
|
|
76 |
<li>Improved locales (named proof contexts), instantiation of locales.</li>
|
|
|
77 |
|
|
|
78 |
<li>Improved handling of linear and partial orders in simplifier.</li>
|
|
|
79 |
|
|
|
80 |
<li>New <code>specification</code> command for definition by specification.</li>
|
|
|
81 |
|
|
|
82 |
<li>New Isar command <code>finalconsts</code> prevents constants being given a definition later.</li>
|
|
|
83 |
|
|
|
84 |
<li><code>arith</code> now generates counterexamples for reals as well.</li>
|
|
|
85 |
|
|
|
86 |
<li>New <code>quickcheck</code> command
|
|
|
87 |
to search for counterexamples of executable goals.
|
|
|
88 |
(see HOL/ex/Quickcheck_Examples.thy)</li>
|
|
|
89 |
<li>New <code>refute</code> command
|
|
|
90 |
to search for finite countermodels of goals.
|
|
|
91 |
(see HOL/ex/Refute_Examples.thy)
|
|
|
92 |
</li>
|
|
|
93 |
|
|
|
94 |
<li>Presentation and x-symbol enhancements, greek letters and
|
|
|
95 |
sub/superscripts allowed in identifiers.</li>
|
|
|
96 |
</ul>
|
|
|
97 |
|
|
16575
|
98 |
<p><a href="//dist/packages/Isabelle/NEWS">[Complete Changelog]</a></p>
|
|
16233
|
99 |
|
|
|
100 |
<h2>Download</h2>
|
|
|
101 |
|
|
|
102 |
<p>
|
|
17563
|
103 |
The Isabelle distribution is distributed for free under the BSD license.
|
|
|
104 |
It includes source and binary packages and browsable documentation,
|
|
|
105 |
see the <a href="installation.html">installation instructions</a>. You can also
|
|
|
106 |
browse the <a href="//dist/library/index.html">Isabelle theory library</a>
|
|
16233
|
107 |
online.
|
|
|
108 |
</p>
|
|
|
109 |
|
|
|
110 |
<p>
|
|
16927
|
111 |
Use the mailing list <a href=
|
|
|
112 |
"mailto:isabelle-users@cl.cam.ac.uk">isabelle-users@cl.cam.ac.uk</a> and its
|
|
|
113 |
<a href="http://www.cl.cam.ac.uk/users/lcp/archive/">archive</a> to
|
|
|
114 |
discuss problems and results. To subscribe, <a href=
|
|
|
115 |
"mailto:Cl-isabelle-users-request@lists.cam.ac.uk?subject=subscribe">
|
|
|
116 |
contact our robot</a>.
|
|
16233
|
117 |
</p>
|
|
|
118 |
|
|
|
119 |
</div>
|
|
|
120 |
<div class="hr"><hr/></div>
|
|
|
121 |
<?include file="//include/footer.include.html"?>
|
|
|
122 |
</body>
|
|
|
123 |
|
|
|
124 |
</html>
|