Wed, 24 May 2000 18:42:28 +0200 paulson installing plus_ac0 for multisets
Wed, 24 May 2000 18:41:49 +0200 paulson replacing "below" by "lessThan"
(0) -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip