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
(0) -3000 -1000 -300 -100 -30 -10 -4 +4 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip