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The Isabelle System Distribution
================================

See the NEWS file in the distribution for details on user-relevant
changes.  The ANNOUNCE file recounts notable changes for the latest
official release.

The core of Isabelle is subject to a 3-clause BSD license, but add-on
components have their own license schemes (similar to a Linux
distribution).


Installation
------------

Isabelle works on the three main platform families: Linux, Windows,
and macOS.  The application bundles from the Isabelle web page
include sources, documentation, and add-on tools for all supported
platforms.

Some technical background information may be found in the Isabelle
System Manual (directory doc).


User interface
--------------

Isabelle/jEdit is an advanced Prover IDE based on jEdit and
Isabelle/Scala.  It is the main example application of the
Isabelle/PIDE framework, and the default user interface of
Isabelle.  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.


Other sources of information
----------------------------

  * The Isabelle Page

    The Isabelle home page may be accessed from the following mirror
    sites:

     * https://www.cl.cam.ac.uk/research/hvg/Isabelle
     * https://isabelle.in.tum.de
     * https://mirror.cse.unsw.edu.au/pub/isabelle
     * https://mirror.clarkson.edu/isabelle

  * Mailing list

    The electronic mailing list [email protected] provides a
    forum for Isabelle users to discuss problems and exchange
    information.  To join, send a message to
    [email protected].

  * Personal mail

    Lawrence C Paulson
    Computer Laboratory
    University of Cambridge
    JJ Thomson Avenue
    Cambridge CB3 0FD
    England
    E-mail: [email protected]
    Phone: +44-223-763500
    Fax: +44-223-334748

    or

    Tobias Nipkow
    Institut für Informatik
    Technische Universität München
    Boltzmannstr. 3
    D-85748 Garching
    Germany
    E-mail: [email protected]
    Phone: +49-89-289-17302
    Fax: +49-89-289-17307

NOTE:
    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.