Tue, 17 May 2005 18:10:31 +0200 wenzelm tuned;
Tue, 17 May 2005 18:10:31 +0200 wenzelm obsolete;
Tue, 17 May 2005 17:01:35 +0200 paulson added comment
Tue, 17 May 2005 17:01:19 +0200 paulson streamlined proof using new subst method
Tue, 17 May 2005 10:19:46 +0200 wenzelm moved credit to CONTRIBUTORS;
Tue, 17 May 2005 10:19:45 +0200 wenzelm moved credit to CONTRIBUTORS;
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