Sat, 05 Jun 1999 21:43:02 +0200 wenzelm groups as monoids;
Sat, 05 Jun 1999 21:38:30 +0200 wenzelm tuned comments;
Sat, 05 Jun 1999 20:37:29 +0200 wenzelm added Ord.order_antisym;
(0) -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip