Wed, 15 Feb 2012 14:33:29 +0000 Christian Urban updated to Isabelle 15 Feb
Sat, 21 Jan 2012 15:35:47 +0000 Christian Urban updated part about beta in Tactiacal section
Sat, 21 Jan 2012 15:18:38 +0000 Christian Urban merged
Sat, 21 Jan 2012 15:16:04 +0000 Christian Urban modified the passage on beta-contractions
(0) -300 -100 -30 -10 -4 +4 +10 +30 tip