Fri, 27 Nov 1998 10:40:29 +0100 paulson moved diag (diagonal relation) from Univ to Relation
Thu, 26 Nov 1998 17:40:10 +0100 paulson tidied up list definitions, using type 'a option instead of
Thu, 26 Nov 1998 16:37:56 +0100 mueller tuning to assimiliate it with PhD;
(0) -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip