Wed, 20 Feb 2013 17:05:24 +0100 blanchet remove needless steps from refutation graph -- these confuse the proof redirection algorithm (and are needless)
Wed, 20 Feb 2013 16:21:04 +0100 blanchet more precise error
Wed, 20 Feb 2013 15:43:51 +0100 blanchet improved hack
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 tip