Fri, 13 May 2011 14:50:17 +0100 Christian Urban misc
Tue, 10 May 2011 17:10:22 +0100 Christian Urban made the subtyping work again
Tue, 10 May 2011 07:47:06 +0100 Christian Urban updated to new Isabelle (> 9 May)
(0) -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 tip