On Mon, Oct 12, 2009 at 6:22 PM, Kim-Ee Yeoh <a.biurvo...@asuhan.com> wrote: > > Does anyone know if it's possible to write the following: > > <**> :: (Applicative m, Applicative n) => > m (n (a->b)) -> m (n a) -> m (n b) > > Clearly, if m and n were monads, it would be trivial. > > Rereading the original paper, I didn't see much discussion > about such nested app. functors. > > Any help appreciated. > How about
m <**> n = pure (<*>) <*> m <*> n Hth, Josef _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
