Don't be too impressed, I think I was way off base. Looks like just a homomorphism: http://en.wikipedia.org/wiki/Homomorphism
Chad > > I wonder, is listify a contravariant functor? > I wonder - will I ever reach the stage where I too make off-hand remarks > like this? :-} > Now I know how all the "normal" people feel when I tell them that a > relation is simply a subset of the extended Cartesian product of the > respective domains of its attributes... _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe