Fri, 04 Apr 1997 11:32:44 +0200 Simplified a proof
paulson [Fri, 04 Apr 1997 11:32:44 +0200] rev 2895
Simplified a proof
(0) -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip