Wed, 13 Jun 2007 14:21:54 +0200 wenzelm reactivated theory Class;
Wed, 13 Jun 2007 12:22:02 +0200 urbanc added the Q_Unit rule (was missing) and adjusted the proof accordingly
Wed, 13 Jun 2007 11:54:03 +0200 wenzelm * Isar: method "assumption" (implicit closing of subproofs) takes non-atomic goal assumptions into account;
(0) -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip