Thu, 10 Dec 2009 17:34:18 +0000 streamlined proofs
paulson [Thu, 10 Dec 2009 17:34:18 +0000] rev 34055
streamlined proofs
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip