Tue, 04 May 1999 16:49:24 +0200 nipkow Arithmetic.
Tue, 04 May 1999 16:18:16 +0200 wenzelm add_recdef: removed names / attributes;
Tue, 04 May 1999 13:47:28 +0200 paulson new definitions of Co and LeadsTo
(0) -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip