Thu, 23 Jan 1997 10:34:18 +0100 paulson Tidied proofs by using "etac rev_mp" instead of applying rev_mp to result()
Wed, 22 Jan 1997 18:17:36 +0100 nipkow Added warning msg when the simplifier cannot use a premise as a rewrite rule
Tue, 21 Jan 1997 11:29:28 +0100 nipkow Modified MiniML. Added W0.
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