Mon, 21 Oct 1996 09:49:41 +0200 nipkow Solves simple arithmetic goals.
Fri, 18 Oct 1996 12:54:19 +0200 paulson Subst as modified by Konrad Slind
(0) -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip