On Thu, Apr 13, 2006 at 12:07:53PM -0700, Iavor Diatchki wrote: > On 4/12/06, Claus Reinke <[EMAIL PROTECTED]> wrote: > > that's why Ross chose a fresh variable in FD range position: > > in the old translation, the class-based FD improvement rule no > > longer applies after reduction because there's only one C constraint > > left, and the instance-based FD improvement rule will only instantiate > > the 'b' or 'c' in the constraint with a fresh 'b_123', 'b_124', .., > > unrelated to 'b', 'c', or any previously generated variables in the > > constraint store. > > I understand the reduction steps. Are you saying that the problem is > that the two sets are not syntactically equal? To me this does not > seem important: we just end up with two different ways to say the same > thing (i.e., they are logically equivalent).
If c were mentioned in another constraint, they would not be equivalent. _______________________________________________ Haskell-prime mailing list Haskell-prime@haskell.org http://haskell.org/mailman/listinfo/haskell-prime
