Fri, 22 Dec 2017 17:49:51 +0100 action "isabelle.draft" for plain-text preview;
wenzelm [Fri, 22 Dec 2017 17:49:51 +0100] rev 67262
action "isabelle.draft" for plain-text preview;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 tip