Mon, 06 Jul 2009 22:41:00 +0200 wenzelm witness_sorts: proper type witnesses for hyps, not invented "'hyp" variables;
Mon, 06 Jul 2009 21:24:30 +0200 wenzelm structure Thm: less pervasive names;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip