src/HOL/Isar_examples/MutilatedCheckerboard.thy
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;
Fri, 17 Jun 2005 16:12:49 +0200 haftmann migrated theory headers to new format
Thu, 30 May 2002 10:12:52 +0200 nipkow Modifications due to enhanced linear arithmetic.
Tue, 30 Oct 2001 17:37:25 +0100 wenzelm tuned induct proofs;
Sat, 06 Oct 2001 00:02:46 +0200 wenzelm * sane numerals (stage 2): plain "num" syntax (removed "#");
Fri, 05 Oct 2001 21:52:39 +0200 wenzelm sane numerals (stage 1): added generic 1, removed 1' and 2 on nat,
Mon, 06 Nov 2000 22:56:07 +0100 wenzelm improved: 'induct' handle non-atomic goals;
Fri, 03 Nov 2000 21:33:53 +0100 wenzelm adapted "obtain" proofs;
Sun, 17 Sep 2000 22:19:02 +0200 wenzelm isar-strip-terminators;
Tue, 12 Sep 2000 22:13:23 +0200 wenzelm renamed atts: rulify to rule_format, elimify to elim_format;
Thu, 07 Sep 2000 21:10:11 +0200 wenzelm updated attribute names;
Sat, 19 Aug 2000 12:44:39 +0200 wenzelm tuned;
Thu, 17 Aug 2000 10:34:11 +0200 wenzelm 'symmetric' attribute;
Mon, 14 Aug 2000 18:13:14 +0200 wenzelm intros;
Sun, 30 Jul 2000 13:03:49 +0200 wenzelm adapted obtain;
Fri, 05 May 2000 22:30:14 +0200 wenzelm adapted to new arithmetic simprocs;
Thu, 13 Apr 2000 15:01:50 +0200 nipkow Times -> <*>
Wed, 05 Apr 2000 21:06:37 +0200 wenzelm fixed goal selection;
Thu, 24 Feb 2000 21:33:32 +0100 wenzelm simplified induct method;
Tue, 22 Feb 2000 21:50:02 +0100 wenzelm tuned "induct" syntax;
Thu, 28 Oct 1999 19:57:34 +0200 wenzelm improved presentation;
Fri, 15 Oct 1999 16:44:37 +0200 wenzelm improved presentation;
Fri, 08 Oct 1999 15:09:14 +0200 wenzelm improved presentation;
Wed, 06 Oct 1999 18:50:51 +0200 wenzelm improved presentation;
Tue, 21 Sep 1999 17:30:55 +0200 wenzelm accomodate refined facts handling;
Sat, 04 Sep 1999 21:13:01 +0200 wenzelm replaced ?? by ?;
Fri, 03 Sep 1999 14:21:59 +0200 wenzelm from hyp;
Wed, 01 Sep 1999 21:35:39 +0200 wenzelm tuned;
Mon, 30 Aug 1999 11:13:27 +0200 wenzelm tuned;
Sun, 29 Aug 1999 17:52:44 +0200 wenzelm added Isar_examples/MutilatedCheckerboard.thy;
Sun, 29 Aug 1999 17:47:26 +0200 wenzelm The Mutilated Chess Board Problem -- Isar'ized version of HOL/Inductive/Mutil;
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