Fri, 05 Oct 2007 22:00:11 +0200 wenzelm tuned induct etc.;
Fri, 05 Oct 2007 20:10:35 +0200 wenzelm execute/system: non-critical;
Fri, 05 Oct 2007 20:10:33 +0200 wenzelm subtract: minor performance tuning;
Fri, 05 Oct 2007 11:16:30 +0200 wenzelm cover only .gz files;
Fri, 05 Oct 2007 09:59:21 +0200 paulson metis method: used theorems
Fri, 05 Oct 2007 09:59:03 +0200 paulson filtering out some package theorems
Fri, 05 Oct 2007 08:38:09 +0200 nipkow added lemmas
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