Fri, 30 Jun 2023 14:56:38 +0200 wenzelm clarified signature;
Fri, 30 Jun 2023 13:12:10 +0200 nipkow New theory Leftist_Heap_List
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 tip