move alternative definition lemmas into Lifting.thy;
simplify proof of Quotient_compose
The Isabelle System Distribution
Version information
This is some unidentified repository version of Isabelle.
See the NEWS file in the distribution for details on user-relevant
changes.
System requirements
Isabelle requires a regular Unix-style platform (e.g. Linux,
Windows with Cygwin, Mac OS X) and depends on the following main
add-on tools:
* The Poly/ML compiler and runtime system (version 5.2.1 or later).
* The GNU bash shell (version 3.x or 2.x).
* Perl (version 5.x).
* Java 1.6.x or 1.7.x from Oracle or Apple -- for Scala and jEdit.
* GNU Emacs (version 23 or 24) -- for the Proof General 4.x interface.
* A complete LaTeX installation -- for document preparation.
Installation
Completely integrated bundles including the full Isabelle sources,
documentation, add-on tools and precompiled logic images for
several platforms are available from the Isabelle web page.
Further background information may be found in the Isabelle System
Manual, distributed with the sources (directory doc).
User interface
Isabelle/jEdit is an emerging Prover IDE based on advanced
technology of Isabelle/Scala. It provides a metaphor of continuous
proof checking of a versioned collection of theory sources, with
instantaneous feedback in real-time and rich semantic markup
associated with the formal text.
The classic Isabelle user interface is Proof General by David
Aspinall and others. It is a generic Emacs interface for proof
assistants, including Isabelle. Its most prominent feature is
script management, providing a metaphor of stepwise proof script
editing.
Other sources of information
The Isabelle Page
The Isabelle home page may be accessed both from Cambridge and Munich:
* http://www.cl.cam.ac.uk/research/hvg/Isabelle/
* 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
isabelle-users-request@cl.cam.ac.uk.
Personal mail
Lawrence C Paulson
Computer Laboratory
University of Cambridge
JJ Thomson Avenue
Cambridge CB3 0FD
England
E-mail: lcp@cl.cam.ac.uk
Phone: +44-223-763500
Fax: +44-223-334748
or
Tobias Nipkow
Institut fuer Informatik
Technische Universitaet Muenchen
Boltzmannstr. 3
D-85748 Garching
Germany
E-mail: nipkow@in.tum.de
Phone: +49-89-289-17302
Fax: +49-89-289-17307
_________________________________________________________________
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.
_________________________________________________________________