Thu, 10 Dec 2009 03:48:39 +0100 Christian Urban added an attempt to get a finite set theory
Thu, 10 Dec 2009 03:47:10 +0100 Christian Urban removed memb and used standard mem (member from List.thy)
Thu, 10 Dec 2009 03:25:42 +0100 Christian Urban merged
Thu, 10 Dec 2009 03:11:19 +0100 Christian Urban simplified proofs
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