Thu, 12 Feb 1998 12:36:28 +0100 wenzelm tuned add_trrules;
Thu, 12 Feb 1998 12:35:50 +0100 wenzelm improved is_letter etc.;
Tue, 10 Feb 1998 10:27:30 +0100 paulson New Addsimps for Compl rules
Tue, 10 Feb 1998 10:26:58 +0100 paulson New AddIffs le_0_eq and neq0_conv
Mon, 09 Feb 1998 18:09:35 +0100 nipkow Replaced ALLNEWSUBGOALS by THEN_ALL_NEW
Mon, 09 Feb 1998 14:40:59 +0100 nipkow Used THEN_ALL_NEW.
(0) -3000 -1000 -300 -100 -30 -10 -6 +6 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip