Sun, 20 Sep 2009 05:18:36 +0100 beautification of some proofs
Ning@localhost [Sun, 20 Sep 2009 05:18:36 +0100] rev 22
beautification of some proofs
Fri, 18 Sep 2009 17:30:33 +0200 Added more useful quotient facts.
Cezary Kaliszyk <kaliszyk@in.tum.de> [Fri, 18 Sep 2009 17:30:33 +0200] rev 21
Added more useful quotient facts.
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