Sat, 19 Feb 2011 19:27:33 +0000 first two proofs in 2 direction
urbanc [Sat, 19 Feb 2011 19:27:33 +0000] rev 119
first two proofs in 2 direction
Sat, 19 Feb 2011 17:10:46 +0000 first proof
urbanc [Sat, 19 Feb 2011 17:10:46 +0000] rev 118
first proof
Sat, 19 Feb 2011 12:01:16 +0000 updated second direction
urbanc [Sat, 19 Feb 2011 12:01:16 +0000] rev 117
updated second direction
(0) -100 -30 -10 -3 +3 +10 +30 +100 tip