ISABELLE-94 DISTRIBUTION DIRECTORY------------------------------------------------------------------------------ISABELLE-94 IS INCOMPATIBLE WITH EARLIER VERSIONS. PLEASE CONSULT THEDOCUMENTATION. In particular, theory files are no longer forced into lower case, but mustbe identical to the actual theory name. See the scriptconv-theory-files.pl on directory Tools.------------------------------------------------------------------------------This directory contains the complete Isabelle system. To build and testall the Isabelle object-logics, use the shell script make-all (on directoryTools). Pure Isabelle and each of the object-logics can be builtseparately using the Makefiles in the respective directories; read them formore information. THE MAKEFILESThe Makefiles can use two different Standard ML compilers: Poly/ML version2.03 or later (from Abstract Hardware Ltd) and Standard ML of New Jersey(Version 0.93 or later). Poly/ML is a commercial product and costs money,but it is reliable and its database system is convenient for interactivework. SML of New Jersey requires lots of store and disc space, but it isfree and its code sometimes runs faster. Both compilers are perfectlysatisfactory for running Isabelle.The Makefiles and make-all use environment variables that you should setaccording to your site configuration. See file Tools/make-all-nj for anexample using the Bourne shell, sh.ISABELLEBIN is the directory to hold Poly/ML databases or New Jersey MLimages. This directory *must* be different from the Isabelle sourcedirectory. When using Poly/ML, ISABELLEBIN must be an absolute pathname(one starting with "/").ML_DBASE is an *absolute* pathname to the initial Poly/ML database. It is notrequired for New Jersey ML.ISABELLECOMP is the ML compiler, typically "poly -noDisplay" or "sml". IfISABELLECOMP begins with the letters "poly" then the Makefiles assume thatit is Poly/ML; if it begins with the letters "sml" then they assumeStandard ML of New Jersey. If a Poly/ML session fails with the message "Run out of store" then youhave used up the entire heap. If your tactic is not in a loop, allocatingmore heap at startup should correct the problem. For instance, "poly -h15000" allocates sufficient heap space to rebuild all Isabelle examples. STRUCTURE OF THIS DIRECTORYImportant files include... COPYRIGHT Copyright notice and Disclaimer of Warranty Pure contains source files for Pure Isabelle (no object-logic) Provers contains generic theorem provers: simplifier, etc. Tools contains shell scripts and utilities The following subdirectories contain object-logics: FOL Natural deduction First-Order Logic (intuitionistic and classical) FOLP First-Order Logic with Proof terms ZF Zermelo-Fraenkel set theory HOL Classical Higher-Order Logic LCF Logic for Computable Functions (domain theory) built upon FOL HOLCF A version of LCF built upon HOL CTT Constructive Type Theory LK Classical first-order sequent calculus Modal The modal logics T, S4, S43 CCL Martin Coen's Classical Computational Logic Cube Barendregt's Lambda CubeDavid Aspinall has written a user interface for Isabelle. It runs underGNU Emacs. It's useful to both novices and experts. You can get it by ftpfrom ftp.dcs.ed.ac.uk, file /pub/da/Isamode.tar.gz.Object-logics include examples files in subdirectory ex or file ex.ML.These files can be loaded in batch mode. The commands can also beexecuted interactively, using the windows on your workstation. This is agood way to get started.Each object-logic is built on top of Pure Isabelle, and possibly on top ofanother object logic like FOL or LK. A database or binary called Pure isfirst created, then the object-logic is loaded on top. Poly/ML extendsPure using its "make_database" operation. Standard ML of New Jersey startswith the Pure core image and loads the object-logic's ROOT.ML. HOW TO GET A STANDARD ML COMPILERTo obtain Poly/ML, contact Mike Crawley <mjc@ahl.co.uk> at AbstractHardware Ltd, The Howell Building, Brunel University, Uxbridge UB8 3PH,England.To obtain Standard ML of New Jersey, contact David MacQueen<dbm@com.att.research> at AT&T Bell Laboratories, 600 Mountain Avenue,Murray Hill, NJ 07974, USA. This compiler is available by FTP. Connect toresearch.att.com; login as anonymous with your userid as password; setbinary mode; transfer files from the directory dist/ml.------------------------------------------------------------------------------The electronic mailing list isabelle-users@cl.cam.ac.uk provides a forumfor Isabelle users to discuss problems and exchange information. To join,send a message to isabelle-users-request@cl.cam.ac.uk.------------------------------------------------------------------------------Please report any problems you encounter. While we shall try to be helpful,we can accept no responsibility for the deficiences of Isabelle and theirconsequences.Lawrence C Paulson E-mail: lcp@cl.cam.ac.ukComputer Laboratory Phone: +44-223-334600University of Cambridge Fax: +44-223-334748 Pembroke Street Cambridge CB2 3QG EnglandTobias Nipkow E-mail: nipkow@informatik.tu-muenchen.deInstitut f�r Informatik Phone: +49-89-2105-2690T. U. M�nchen Fax: +49-89-2105-8183D-80290 M�nchenGermany$Id$