Mon, 07 Oct 2019 14:31:46 +0200 simplified proof
nipkow [Mon, 07 Oct 2019 14:31:46 +0200] rev 70793
simplified proof
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 tip