Thu, 24 Sep 1998 16:53:00 +0200 oheimb improved description of looper and splitter
Thu, 24 Sep 1998 15:36:16 +0200 oheimb workaround for litte bug in our ln command
Thu, 24 Sep 1998 15:23:47 +0200 paulson Function nat_of now maps negative integers to zero, not their absolute value
Thu, 24 Sep 1998 15:21:30 +0200 paulson renamed some axioms
Thu, 24 Sep 1998 15:20:29 +0200 paulson added correctness proofs for arithmetic
Thu, 24 Sep 1998 15:20:03 +0200 paulson new induction rule for integers
Thu, 24 Sep 1998 11:00:07 +0200 oheimb fixed calls of ln, rm
Wed, 23 Sep 1998 12:44:30 +0200 wenzelm changed xnum token syntax;
Wed, 23 Sep 1998 10:56:08 +0200 paulson unary minus
Wed, 23 Sep 1998 10:25:37 +0200 paulson much renaming and reorganization
Wed, 23 Sep 1998 10:17:11 +0200 paulson New directory Integ for the integers
Wed, 23 Sep 1998 10:15:09 +0200 paulson a few new theorems
Wed, 23 Sep 1998 10:12:01 +0200 paulson deleted needless parentheses
Wed, 23 Sep 1998 10:11:18 +0200 paulson tidying and deleting needless parentheses
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