ref: 1ddb87f544900f59d70e538d2ab0aa9fa7a65512 dir: /lib/Data/Monoid.hs/
module Data.Monoid(module Data.Monoid) where import Primitives import Data.Semigroup class Semigroup a => Monoid a where mempty :: a mappend :: a -> a -> a mappend = (<>)