Wed, 01 Feb 2006 01:05:17 +0100 urbanc - renamed some lemmas (some had names coming from ancient
Wed, 01 Feb 2006 01:03:41 +0100 urbanc added all constructors from PhD
Tue, 31 Jan 2006 18:19:36 +0100 wenzelm axiomatization: retrict parameters to occurrences in specs;
Tue, 31 Jan 2006 18:19:35 +0100 wenzelm improved comments;
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