Wed, 18 Apr 2012 14:29:18 +0200 hoelzl add powr_inj
Wed, 18 Apr 2012 14:29:17 +0200 hoelzl add lemmas to rewrite powr to power
Wed, 18 Apr 2012 14:29:16 +0200 hoelzl add lemmas to compare log with 0 and 1
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 tip