Thu, 11 Feb 1999 21:15:27 +0100 wenzelm val appends: T list -> T;
Thu, 11 Feb 1999 15:30:10 +0100 wenzelm tuned;
Tue, 09 Feb 1999 10:47:21 +0100 paulson tidied; better error messages
(0) -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip