(1) added axiom to ringb and theorems to enable algebra to prove the ideal membership problem; (2) Method algebra now calls algebra_tac which first tries to solve a universal formula, then in case of failure trie to solve the ideal membership problem (see HOL/Tools/Groebner_Basis/groebner.ML)
The Isabelle System Distribution
Version information
This is the internal repository version of Isabelle. See the NEWS file
in the distribution for details on user-relevant changes.
System requirements
Isabelle requires a regular Unix platform (e.g. GNU Linux) with the
following additional software:
* A full Standard ML Compiler (e.g. Poly/ML 5.x, 4.x).
* The GNU bash shell (version 3.x, 2.x).
* Perl (version 5.x).
* XEmacs (version 21.4.x) -- for the ProofGeneral interface.
* A complete LaTeX installation -- for document preparation.
Installation
Binary packages are available for Isabelle/HOL and ZF for several
platforms from the Isabelle web page. The system may be easily built
from scratch as well, taking the traditional tar.gz source
distribution. See file INSTALL as distributed with Isabelle for more
information.
Further background information may be found in the Isabelle System
Manual, distributed with the sources (directory doc).
User interface
The canonical Isabelle user interface is [1]Proof General by David
Aspinall and others. It is a generic (X)Emacs interface for proof
assistants, including Isabelle (both for the classic and Isar
version). Proof General is suitable for use by pacifists and Emacs
militants alike. Its most prominent feature is script management,
providing a metaphor of live proof script editing. Proof General has
recently gained a rather large following of both beginning and expert
users of Isabelle.
Proof General is distributed together with the XEmacs [2]X-Symbol
package, which provides a nice way to get proper mathematical symbols
displayed on screen.
Other sources of information
The Isabelle Page
The Isabelle home page may be accessed both from Cambridge and Munich:
* [3]http://www.cl.cam.ac.uk/Research/HVG/Isabelle/
* [4]http://isabelle.in.tum.de
Mailing list
The electronic mailing list isabelle-users@cl.cam.ac.uk provides a
forum for Isabelle users to discuss problems and exchange information.
To join, send a message to [5]isabelle-users-request@cl.cam.ac.uk.
Personal mail
[6]Lawrence C Paulson
Computer Laboratory
University of Cambridge
JJ Thomson Avenue
Cambridge CB3 0FD
England
E-mail: [7]lcp@cl.cam.ac.uk
Phone: +44-223-763500
Fax: +44-223-334748
or
[8]Tobias Nipkow
Institut für Informatik
Technische Universität München
Boltzmannstr. 3
D-85748 Garching
Germany
E-mail: [9]nipkow@in.tum.de
Phone: +49-89-289-17302
Fax: +49-89-289-17307
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Please report any problems you encounter. While we shall try to be
helpful, we can accept no responsibility for the deficiencies of
Isabelle and their consequences.
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