Tue, 15 Oct 2019 13:11:31 +0200 wenzelm skip (somewhat pointless) shrink_proof more uniformly;
Tue, 15 Oct 2019 11:48:25 +0200 wenzelm apply_preproc for all proof boxes;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 tip