Wed, 28 Sep 2022 11:00:13 +0200 recover informal "&" from 0c18df79b1c8;
wenzelm [Wed, 28 Sep 2022 11:00:13 +0200] rev 76219
recover informal "&" from 0c18df79b1c8;
Tue, 27 Sep 2022 22:57:30 +0100 added a couple of structured proofs
paulson <lp15@cam.ac.uk> [Tue, 27 Sep 2022 22:57:30 +0100] rev 76218
added a couple of structured proofs
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 tip