Thu, 07 Jun 2007 04:33:15 +0200 huffman remove redundant lemmas
Thu, 07 Jun 2007 03:45:56 +0200 huffman remove references to preal-specific theorems
Thu, 07 Jun 2007 03:11:31 +0200 huffman define (1::preal); clean up instance declarations
Thu, 07 Jun 2007 02:34:37 +0200 huffman tuned
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