Thu, 22 Oct 2009 16:10:06 +0200 Cezary Kaliszyk Working on the proof and the tactic.
Thu, 22 Oct 2009 15:45:05 +0200 Cezary Kaliszyk The proof gets simplified
(0) -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 tip