Thu, 12 Apr 2012 10:13:33 +0200 bulwahn multiset operations are defined with lift_definitions;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip