Journal/Paper.thy
Tue, 15 Jul 2014 17:25:53 +0200 Christian Urban updated teh theories to newer Isabelle version
Thu, 12 Jun 2014 10:14:50 +0100 Christian Urban a few additions
Mon, 09 Jun 2014 16:01:28 +0100 Christian Urban added another book that makes the error, some more proofs
Fri, 30 May 2014 07:56:39 +0100 Christian Urban finished proof of acyclity
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