ref: 5a6e20ca64a3a59cfef8d4bb9167e7c7532374e4 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 = (<>)