Modulesemigroupoids-6.0.2Haskell2010

Data.Semigroupoid.Dual

A semigroupoid satisfies all of the requirements to be a Category except for the existence of identity arrows.

Synopsis

newtypenewtype Dual (k2 :: k -> k1 -> Type) (a :: k1) (b :: k)

Instances3Category, Groupoid, Semigroupoid

Category k => Category (Dual k)Defined in semigroupoids-6.0.2 · Data.Semigroupoid.Dual
Groupoid k => Groupoid (Dual k)Defined in semigroupoids-6.0.2 · Data.Groupoid
Semigroupoid k => Semigroupoid (Dual k)Defined in semigroupoids-6.0.2 · Data.Semigroupoid.Dual