Thu, 31 Jan 2008 09:16:01 +0100 haftmann avoiding dynamic simpset lookup
Thu, 31 Jan 2008 01:31:19 +0100 huffman new lemma is_lub_Pair; cleaned up some proofs
Wed, 30 Jan 2008 17:36:03 +0100 nipkow commented stuff out
Wed, 30 Jan 2008 17:34:21 +0100 nipkow added multiset comprehension
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