Sun, 10 Feb 2019 21:53:57 +0000 updated to Isabelle 2018
Christian Urban <urbanc@in.tum.de> [Sun, 10 Feb 2019 21:53:57 +0000] rev 307
updated to Isabelle 2018
(0) -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 tip