Tue, 07 Jan 2020 14:40:11 +0100 blanchet removed experimental option to SPASS
Tue, 07 Jan 2020 12:37:12 +0100 nipkow alternative deletion in Red-Black trees
Tue, 07 Jan 2020 07:03:18 +0100 nipkow generalized thm (as suggested by Christian Weinz)
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 tip