Mon, 12 Dec 2011 08:19:37 +0100 replace more uses of 'lemmas' with explicit 'lemma';
huffman [Mon, 12 Dec 2011 08:19:37 +0100] rev 45816
replace more uses of 'lemmas' with explicit 'lemma'; replace uses of 'simplified' attribute with 'unfolded'; remove unused intermediate lemmas.
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