src/HOL/Isar_examples/MutilatedCheckerboard.thy
Wed, 07 May 2008 10:59:23 +0200 berghofe Rephrased calculational proofs to avoid problems with HO unification
Wed, 11 Jul 2007 11:14:51 +0200 berghofe Adapted to new inductive definition package.
Wed, 13 Jun 2007 18:30:11 +0200 wenzelm tuned proofs: avoid implicit prems;
Wed, 07 Feb 2007 17:46:03 +0100 berghofe Adapted to changes in Finite_Set theory.
Wed, 23 Nov 2005 22:26:13 +0100 wenzelm tuned induction proofs;
Wed, 16 Nov 2005 17:50:35 +0100 wenzelm tuned;
Thu, 10 Nov 2005 21:14:05 +0100 wenzelm tuned proofs;
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