Consider the following: data SimpExist a = SimpExist (forall x . x -> a) f :: SimpExist Bool f = SimpExist (const True) g = SimpExist id
What is the type of g? In a similar example, GHC tells me it is of type SimpExist c. Yet, I can't unify it with any other SimpExist c'. It seems to me that this is something like exists x . SimpExist x, and is similar to: data ExistWrap = forall a . ExistWrap (forall x . x -> a) Jim _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
