Re: [Haskell-cafe] Questions about Functor, Applicative, Monad

Hi Corentin, This may be a good answer for some of your questions: http://stackoverflow.com/questions/7220436/good-examples-of-not-a-functor-fu... Kenn On Mon, May 5, 2014 at 6:31 PM, Corentin Dupont wrote:

Hi everybody! Two questions in one: - When you define and instance of a Monad, why don't you get the Applicative and Functor instances for free? I seem that you can mechanically write them. - Do you have examples of things that are Functors but not Applicative? Applicative but not Monads?

Tchuss Corentin

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