Thu, 18 Mar 2010 10:05:36 +0100 Christian Urban added TODO
Thu, 18 Mar 2010 10:02:21 +0100 Christian Urban vixed variable names
Thu, 18 Mar 2010 09:31:31 +0100 Christian Urban simplified strong induction proof by using flip
(0) -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 tip