I can think of a use for a non-equality constraint: an alphabetical ordering on Symbol. This would allow experimental implementations of extensible records (without shadowing) which keep the labels sorted.
An order constraint on Nat might be useful, too. Barney. _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
