Wed, 31 Jul 2013 13:15:29 +0100 Christian Urban added some lemmas
Mon, 01 Jul 2013 09:56:58 +0100 Christian Urban updated to ne Isabelle
Tue, 04 Jun 2013 09:39:23 +0100 Christian Urban updated to new Isabelle
(0) -3000 -1000 -300 -100 -30 -10 -3 +3 +10 tip