Tue, 04 Jul 2017 16:42:49 +0100 isar proofs
Christian Urban <urbanc@in.tum.de> [Tue, 04 Jul 2017 16:42:49 +0100] rev 262
isar proofs
(0) -100 -30 -10 -1 +1 +10 +30 +100 +300 tip