Thu, 27 May 2010 10:39:07 +0200 Christian Urban updated to new Isabelle
Mon, 24 May 2010 20:02:11 +0100 Christian Urban added phi for morphisms
Mon, 17 May 2010 18:20:48 +0100 Christian Urban updated to new Isabelle
(0) -300 -100 -30 -10 -3 +3 +10 +30 +100 tip