Mon, 31 Jan 2022 10:01:50 +0100 wenzelm tuned -- fewer warnings;
Sat, 29 Jan 2022 15:24:05 +0000 paulson Added a tiny proof
Fri, 28 Jan 2022 16:15:28 +0000 paulson Deletion of a duplicate proof
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 tip