Wed, 23 Jun 1999 10:37:29 +0200 paulson new distributive laws involving * and -
Wed, 23 Jun 1999 10:36:59 +0200 paulson rewrite rules to distribute CONSTANT multiplication over sum and difference;
Thu, 17 Jun 1999 10:43:05 +0200 paulson another snapshot, still not working
Thu, 17 Jun 1999 10:41:39 +0200 paulson new results about SKIP
Thu, 17 Jun 1999 10:39:30 +0200 paulson addition of drop_... operators with new results and simplification of old ones
Thu, 17 Jun 1999 10:36:03 +0200 paulson renamed UNION_... to UN_..., INTER_... to INT_... (to fit the convention)
Thu, 17 Jun 1999 10:35:01 +0200 paulson many new guarantees laws
(0) -3000 -1000 -300 -100 -30 -10 -7 +7 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip