Sat, 19 Feb 2011 20:15:59 +0000 urbanc ALT case done
Sat, 19 Feb 2011 19:27:33 +0000 urbanc first two proofs in 2 direction
Sat, 19 Feb 2011 17:10:46 +0000 urbanc first proof
Sat, 19 Feb 2011 12:01:16 +0000 urbanc updated second direction
(0) -100 -30 -10 -4 +4 +10 +30 +100 tip