The Isabelle System Distribution================================See the NEWS file in the distribution for details on user-relevantchanges. The ANNOUNCE file recounts notable changes for the latestofficial release.The core of Isabelle is subject to a 3-clause BSD license, but add-oncomponents have their own license schemes (similar to a Linuxdistribution).Installation------------Isabelle works on the three main platform families: Linux, Windows,and macOS. The application bundles from the Isabelle web pageinclude sources, documentation, and add-on tools for all supportedplatforms.Some technical background information may be found in the IsabelleSystem Manual (directory doc).User interface--------------Isabelle/jEdit is an advanced Prover IDE based on jEdit andIsabelle/Scala. It is the main example application of theIsabelle/PIDE framework, and the default user interface ofIsabelle. It provides a metaphor of continuous proof checking of aversioned collection of theory sources, with instantaneous feedbackin real-time and rich semantic markup associated with the formaltext.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 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 für Informatik Technische Universität München Boltzmannstr. 3 D-85748 Garching Germany E-mail: nipkow@in.tum.de Phone: +49-89-289-17302 Fax: +49-89-289-17307NOTE: 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.