Mon, 04 Dec 2017 16:28:00 +0100 wenzelm tuned comments;
Mon, 04 Dec 2017 20:24:17 +0100 nipkow more lemmas
Sun, 03 Dec 2017 22:28:19 +0100 wenzelm misc tuning and modernization;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 tip