Thu, 17 Jun 1999 10:39:30 +0200 addition of drop_... operators with new results and simplification of old ones
paulson [Thu, 17 Jun 1999 10:39:30 +0200] rev 6835
addition of drop_... operators with new results and simplification of old ones
Thu, 17 Jun 1999 10:36:03 +0200 renamed UNION_... to UN_..., INTER_... to INT_... (to fit the convention)
paulson [Thu, 17 Jun 1999 10:36:03 +0200] rev 6834
renamed UNION_... to UN_..., INTER_... to INT_... (to fit the convention)
Thu, 17 Jun 1999 10:35:01 +0200 many new guarantees laws
paulson [Thu, 17 Jun 1999 10:35:01 +0200] rev 6833
many new guarantees laws
(0) -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip