Module
Control.Semigroupoid
- Package
- purescript-prelude
- Repository
- purescript/purescript-prelude
#Semigroupoid Source
class Semigroupoid :: forall k. (k -> k -> Type) -> Constraintclass Semigroupoid a where
A Semigroupoid is similar to a Category but does not
require an identity element identity, just composable morphisms.
Semigroupoids must satisfy the following law:
- Associativity:
p <<< (q <<< r) = (p <<< q) <<< r
One example of a Semigroupoid is the function type constructor (->),
with (<<<) defined as function composition.
Members
compose :: forall b c d. a c d -> a b c -> a b d
Instances
#composeFlipped Source
composeFlipped :: forall a b c d. Semigroupoid a => a b c -> a c d -> a b dForwards composition, or compose with its arguments reversed.
- Modules
- Control.
Applicative - Control.
Apply - Control.
Bind - Control.
Category - Control.
Monad - Control.
Semigroupoid - Data.
Boolean - Data.
BooleanAlgebra - Data.
Bounded - Data.
Bounded. Generic - Data.
CommutativeRing - Data.
DivisionRing - Data.
Eq - Data.
Eq. Generic - Data.
EuclideanRing - Data.
Field - Data.
Function - Data.
Functor - Data.
Generic. Rep - Data.
HeytingAlgebra - Data.
HeytingAlgebra. Generic - Data.
Monoid - Data.
Monoid. Additive - Data.
Monoid. Conj - Data.
Monoid. Disj - Data.
Monoid. Dual - Data.
Monoid. Endo - Data.
Monoid. Generic - Data.
Monoid. Multiplicative - Data.
NaturalTransformation - Data.
Ord - Data.
Ord. Generic - Data.
Ordering - Data.
Reflectable - Data.
Ring - Data.
Ring. Generic - Data.
Semigroup - Data.
Semigroup. First - Data.
Semigroup. Generic - Data.
Semigroup. Last - Data.
Semiring - Data.
Semiring. Generic - Data.
Show - Data.
Show. Generic - Data.
Symbol - Data.
Unit - Data.
Void - Prelude
- Record.
Unsafe - Type.
Proxy