Mon, 19 Jul 2010 20:19:03 +0200 haftmann diff_eq_diff_less_eq' replaces diff_eq_diff_less_eq
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip