README

A few more topological results. And made some slow proofs faster

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−                       The Isabelle System Distribution
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−Version information
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−   This is some unidentified repository version of Isabelle.
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−
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−   See the NEWS file in the distribution for details on user-relevant
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−   changes.
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−Installation
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−   Isabelle works on the three main platform families: Linux, Windows,
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−   and Mac OS X.  The application bundles from the Isabelle web page
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−   include sources, documentation, and add-on tools for all supported
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−   platforms.
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−   Some technical background information may be found in the Isabelle
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−   System Manual (directory doc).
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−User interface
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−   Isabelle/jEdit is an advanced Prover IDE based on jEdit and
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−   Isabelle/Scala.  It is the main example application of the
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−   Isabelle/PIDE framework, and the default user interface of
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−   Isabelle.  It provides a metaphor of continuous proof checking of a
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−   versioned collection of theory sources, with instantaneous feedback
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−   in real-time and rich semantic markup associated with the formal
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−   text.
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−Other sources of information
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−  The Isabelle Page
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−   The Isabelle home page may be accessed from the following mirror
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−   sites:
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−
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−     * http://www.cl.cam.ac.uk/research/hvg/Isabelle
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−     * http://isabelle.in.tum.de
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−     * http://mirror.cse.unsw.edu.au/pub/isabelle
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−     * http://mirror.clarkson.edu/isabelle
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−  Mailing list
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−   The electronic mailing list [e-mail] provides a
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−   forum for Isabelle users to discuss problems and exchange
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−   information.  To join, send a message to
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−   [e-mail].
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−
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−  Personal mail
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−
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−   Lawrence C Paulson
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−   Computer Laboratory
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−   University of Cambridge
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−   JJ Thomson Avenue
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−   Cambridge CB3 0FD
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−   England
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−   E-mail: [e-mail]
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−   Phone: [phone]
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−   Fax: [phone]
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−
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−   or
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−   Tobias Nipkow
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−   Institut fuer Informatik
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−   Technische Universitaet Muenchen
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−   Boltzmannstr. 3
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−   D-85748 Garching
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−   Germany
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−   E-mail: [e-mail]
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−   Phone: [phone]
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−   Fax: [phone]
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−     _________________________________________________________________
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−   Please report any problems you encounter. While we shall try to be
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−   helpful, we can accept no responsibility for the deficiencies of
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−   Isabelle and their consequences.
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−     _________________________________________________________________