Thu, 11 Aug 2011 10:36:34 +0200 krauss eliminated use of recdef
Thu, 11 Aug 2011 09:41:21 +0200 krauss removed obsolete recdef-related examples
Thu, 11 Aug 2011 09:15:45 +0200 krauss removed unused material, which does not really belong here
Wed, 10 Aug 2011 18:07:32 -0700 huffman merged
Wed, 10 Aug 2011 18:02:16 -0700 huffman avoid warnings about duplicate rules
Wed, 10 Aug 2011 17:02:03 -0700 huffman follow standard naming scheme for sgn_vec_def
Wed, 10 Aug 2011 16:35:50 -0700 huffman remove several redundant and unused theorems about derivatives
Wed, 10 Aug 2011 15:56:48 -0700 huffman remove redundant lemma
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