Tue, 11 Dec 2007 10:23:10 +0100 haftmann dropped Class.prep_spec
Tue, 11 Dec 2007 10:23:09 +0100 haftmann moved lemma odd_pos to theory Parity
Tue, 11 Dec 2007 10:23:08 +0100 haftmann joined StarClasses theory with StarDef
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