Stefan O'Rear wrote: > [...] > Unfortunately, it turns out that > allowing foralls inside function arguments makes typechecking much > harder, in general impossible.
Just a tiny correction: AFAIK, it is type /inference/ which becomes undecidable in the presence of higher rank types -- checking works just fine (it could be true that it's harder, though). Cheers Ben _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
