Tue, 20 Sep 2011 05:48:23 +0200 nipkow Updated IMP to use new induction method
Tue, 20 Sep 2011 05:47:11 +0200 nipkow New proof method "induction" that gives induction hypotheses the name IH.
Tue, 20 Sep 2011 22:11:22 +0200 haftmann official status for UN_singleton
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