Mon, 26 Oct 2009 10:20:20 +0100 Cezary Kaliszyk Finished COND_PRS proof.
Mon, 26 Oct 2009 10:02:50 +0100 Cezary Kaliszyk Cleaning and fixing.
Mon, 26 Oct 2009 02:06:01 +0100 Christian Urban updated with quotient_def
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