Mon, 22 Mar 2010 18:56:35 +0100 sym proof with compose.
Cezary Kaliszyk <kaliszyk@in.tum.de> [Mon, 22 Mar 2010 18:56:35 +0100] rev 1584
sym proof with compose.
(0) -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 tip