Sun, 22 Feb 2009 18:00:05 +0100 haftmann subalgebra: drop arities if desired
Sun, 22 Feb 2009 17:33:16 +0100 haftmann merged
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip