Sat, 12 Dec 2009 05:12:50 +0100 Some proofs.
Cezary Kaliszyk <kaliszyk@in.tum.de> [Sat, 12 Dec 2009 05:12:50 +0100] rev 728
Some proofs.
(0) -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 tip