Closures.thy
2011-09-14 urbanc polished the non-regularity proof
2011-09-14 urbanc clarified proof about non-regularity
2011-09-05 urbanc tuning on the derivatives and closures theories
2011-09-05 urbanc added section about non-regularity
2011-09-02 urbanc latest changes
2011-09-02 urbanc small improvement
2011-09-02 urbanc added example about non-regularity
2011-08-23 urbanc beginnig of the slides (not yet finished)
2011-08-22 urbanc changes according to afp-submission
2011-08-17 urbanc added an example for non-regularity and continuation lemma (the example does not yet work)
2011-08-11 urbanc finished section about derivatives and closure properties
2011-08-11 urbanc slight polishing
2011-08-09 urbanc more on paper
2011-08-05 urbanc more on the derivatives section
2011-07-31 urbanc some experiments with the proofs in Myhill_2
2011-07-25 urbanc made the theories compatible with the existing developments in the AFP; old theories are in the directory Attic
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