Wed, 18 Dec 2019 15:10:13 +0100 wenzelm more permissive string fields;
Wed, 18 Dec 2019 10:39:38 +0100 nipkow tuned proof (by Thomas Sewell)
Tue, 17 Dec 2019 22:22:20 +0100 wenzelm tuned;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 tip