Tue, 25 Feb 2014 11:36:04 +0100 wenzelm more positions;
Tue, 25 Feb 2014 10:50:12 +0100 wenzelm more markup;
Tue, 25 Feb 2014 19:07:42 +0100 kuncar simplify a proof due to 6c95a39348bd
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 tip