Tue, 20 Mar 2007 08:27:19 +0100 haftmann fixed slip
Tue, 20 Mar 2007 08:27:15 +0100 haftmann explizit "type" superclass
Mon, 19 Mar 2007 19:28:27 +0100 urbanc tuned the proof
(0) -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip