Fri, 01 May 2015 17:52:24 +0200 wenzelm tuned spelling;
Fri, 01 May 2015 11:36:16 +0100 paulson Merge
Thu, 30 Apr 2015 17:00:43 +0100 paulson Merge
Thu, 30 Apr 2015 15:33:59 +0100 paulson Merge
Thu, 30 Apr 2015 15:28:01 +0100 paulson tidying some messy proofs
Fri, 01 May 2015 08:45:30 +0200 nipkow new simp rule
Thu, 30 Apr 2015 16:07:43 +0200 wenzelm more formal source, more PIDE markup;
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