2011-01-26 zhang Just checkin
2011-01-26 zhang Small modification
2011-01-26 zhang ok
2011-01-25 zhang 1. Myhill.thy is proved to correct some typos. 2. Some sections are added to the first direction. 3. The small theory of list difference is now separated into Prefix_subtract.thy and the ROOT.ML
2011-01-24 zhang Directory [tphols-2011] is added to host the commented version of [Myhill.thy]. Directory [pres] is created to host a build session for logical image [ListP] which is essentially [Main] extended with [List_prefix.thy].
2011-01-07 wu Beautifying of the Other Direction is finished.
2010-12-31 wu Rewritten of hard direction once more. To make it looking better.
2010-12-14 wu Add new file for the new definition of the hard direction's simplification.
2010-11-26 urbanc added a recent paper by Tobias Nipkow on regular expressions
2010-11-26 urbanc added interesting paper by rutten
2010-11-25 urbanc added paper
2010-11-18 wu All cases of the Other direction finished
2010-11-10 urbanc added a test file
2010-11-10 urbanc my slides from the talk in Cambridge
2010-11-10 urbanc added my slides
2010-11-08 urbanc slight tuning of proof by Chunhan
2010-11-06 wu the ALT case is done;
2010-11-03 urbanc added more experiments
2010-11-03 urbanc added initial slides for informal talk in Cambridge
2010-10-26 urbanc added slides of chunhan
2010-10-26 urbanc more experiments
2010-10-24 urbanc a few more experiments, but no proof for the ALT-case
2010-10-23 wu add some proofs about the other direction
2010-10-22 urbanc deleted two unnecessary lemmas
2010-10-22 urbanc added a paper by Constable about the Myhill-Nerode in Nuprl using DFA and a paper by tobias about RegExp->DFA translation
2010-10-21 urbanc deleted the test
2010-10-21 urbanc tried at the end to prove the other direction (failed at the moment)
2010-10-21 urbanc deleted the matcher ate the beginning; made it to work with stable Isabelle and the development version
2010-10-20 wu former version has a ugly usage of "overloaded";
2010-10-19 urbanc added a file about the easy closure properties of regular sets (the difficult parts, like complement, are missing)
2010-10-07 wu Add a test file, after testing, this file can be deleted.
2010-10-03 urbanc added simple regexp matcher from Slind et al
2010-10-03 urbanc test
2010-10-03 urbanc added literature
2010-10-03 urbanc added initial version by Chunhan
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