Thu, 11 Jun 2009 09:03:24 -0700 cleaned up some proofs
huffman [Thu, 11 Jun 2009 09:03:24 -0700] rev 31563
cleaned up some proofs
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip