Fri, 20 Oct 2017 07:46:10 +0200 added lemmas and tuned proofs
haftmann [Fri, 20 Oct 2017 07:46:10 +0200] rev 66886
added lemmas and tuned proofs
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 tip