Closures.thy
Fri, 05 Jul 2013 17:19:17 +0100 Christian Urban polished more and updated to new isabelle
Wed, 14 Sep 2011 13:39:03 +0000 urbanc polished the non-regularity proof
Wed, 14 Sep 2011 13:00:44 +0000 urbanc clarified proof about non-regularity
Mon, 05 Sep 2011 20:59:50 +0000 urbanc tuning on the derivatives and closures theories
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