Mon, 28 Oct 1996 13:02:37 +0100 paulson Simplified proofs
Mon, 28 Oct 1996 13:01:25 +0100 paulson Tidied up a big mess in UN_parts_sees_Says
Mon, 28 Oct 1996 12:55:24 +0100 paulson Changing from the Reveal to the Oops rule
Sun, 27 Oct 1996 13:47:02 +0100 nipkow Simplifid proofs.
Fri, 25 Oct 1996 15:02:09 +0200 nipkow Added (? x. t=x) = True
Thu, 24 Oct 1996 11:41:43 +0200 paulson Documents the use of negative arguments to choplev and prlev
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