Thu, 30 May 2013 13:20:04 +0200 wenzelm tuned;
Thu, 30 May 2013 13:07:23 +0200 wenzelm tuned signature;
Thu, 30 May 2013 12:56:25 +0200 wenzelm stay within regular tactic language -- avoid operating on whole proof state;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 tip