Thu, 16 Oct 1997 15:33:06 +0200 wenzelm global;
Thu, 16 Oct 1997 15:31:12 +0200 nipkow Modified comment.
Thu, 16 Oct 1997 15:23:53 +0200 paulson New simprules imp_disj1, imp_disj2
Thu, 16 Oct 1997 15:23:25 +0200 paulson New simprule diff_le_self, requiring a new proof of diff_diff_cancel
Thu, 16 Oct 1997 15:09:08 +0200 nipkow Removed comment.
Thu, 16 Oct 1997 14:52:35 +0200 wenzelm tuned;
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