Sun, 30 Sep 2012 12:04:47 +0200 traytel got rid of subst_tac alias
Sun, 30 Sep 2012 12:04:13 +0200 traytel tuned tactic
Sat, 29 Sep 2012 21:59:08 +0200 wenzelm tuned proofs;
Sat, 29 Sep 2012 21:24:20 +0200 wenzelm tuned proofs;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -4 +4 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip