Wed, 31 Aug 2011 08:11:47 -0700 huffman move lemmas from Topology_Euclidean_Space to Euclidean_Space
Wed, 31 Aug 2011 07:51:55 -0700 huffman convert to Isar-style proof
Wed, 31 Aug 2011 13:22:50 +0200 blanchet make SML/NJ happy
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