Mon, 12 Jan 2009 09:04:25 -0800 huffman add list-style syntax for pCons
Mon, 12 Jan 2009 08:46:07 -0800 huffman add recursion combinator poly_rec; define poly function using poly_rec
Mon, 12 Jan 2009 08:15:07 -0800 huffman add lemmas degree_{add,diff}_less
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