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Questions - default-method

What is the point of the Functor -> Applicative -> Monad hierarchy

What is the point of making Functor a super class of Applicative and Monad. Both Applicative and Monad immediately imply the only implementation of Functor that abides by the laws as far as I can tell...
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HashBr0wn

haskell

monads

functor

applicative

default-method

Votes: 0

Answers: 2

Latest Answer

You can get those instances this way: import Control.Applicative data Whatever a = {- ... -} deriving (Functor, Applicative) via (WrappedMonad Whatever) It would have been nice to add DefaultSignatur...
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Daniel Wagner

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