Brian Boutel writes: > [...] > > If the supply of suitable Ascii symbols seems inadequate, remember > that Haskell uses Unicode. There is no reason to limit symbols to > those in the Ascii set. While we're on the subject, I suggest Unicode as a Hugs/GHC wish list item. In particular, I'd like to use the familiar symbols for union, intersection, and subset, without resorting to Ascii art, please. Regards, Tom