Mon, 19 Apr 2010 15:08:29 +0200 Cezary Kaliszyk Alternate list_eq and equivalence
Mon, 19 Apr 2010 14:08:01 +0200 Cezary Kaliszyk Some new lemmas
(0) -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 tip