Wed, 14 Jun 2017 19:39:12 +0200 simplified delete/proof
nipkow [Wed, 14 Jun 2017 19:39:12 +0200] rev 66087
simplified delete/proof
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 tip