Wed, 17 Jun 2015 22:12:08 +0200 tuned proofs -- much faster;
wenzelm [Wed, 17 Jun 2015 22:12:08 +0200] rev 60509
tuned proofs -- much faster;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 tip