Wed, 04 Oct 2017 12:00:53 +0200 obsolete; Isabelle2017
wenzelm [Wed, 04 Oct 2017 12:00:53 +0200] rev 66787
obsolete;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 tip