Tue, 18 Apr 2000 15:56:41 +0200 replaced obsolete diff_right_cancel by diff_diff_eq
paulson [Tue, 18 Apr 2000 15:56:41 +0200] rev 8740
replaced obsolete diff_right_cancel by diff_diff_eq
(0) -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip