Tue, 13 Sep 2011 17:25:19 -0700 tuned proofs
huffman [Tue, 13 Sep 2011 17:25:19 -0700] rev 44922
tuned proofs
Tue, 13 Sep 2011 17:07:33 -0700 tuned proofs
huffman [Tue, 13 Sep 2011 17:07:33 -0700] rev 44921
tuned proofs
Tue, 13 Sep 2011 08:21:51 -0700 remove some redundant [simp] declarations;
huffman [Tue, 13 Sep 2011 08:21:51 -0700] rev 44920
remove some redundant [simp] declarations; simplify some proofs;
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