| Copyright | (c) 2013-2015 diagrams-core team (see LICENSE) |
|---|---|
| License | BSD-style (see LICENSE) |
| Maintainer | diagrams-discuss@googlegroups.com |
| Safe Haskell | Safe-Inferred |
| Language | Haskell2010 |
Data.Monoid.Endomorphism
Description
The monoid of endomorphisms over any Category.
- newtype Endomorphism k a = Endomorphism {
- getEndomorphism :: k a a
Documentation
newtype Endomorphism k a Source
An Endomorphism in a given Category is a morphism from some
object to itself. The set of endomorphisms for a particular
object form a monoid, with composition as the combining operation
and the identity morphism as the identity element.
Constructors
| Endomorphism | |
Fields
| |
Instances
| Show (k a a) => Show (Endomorphism k a) | |
| Category * k => Monoid (Endomorphism k a) | |
| (Category * k, Groupoid * k) => Group (Endomorphism k a) | |
| Semigroupoid * k => Semigroup (Endomorphism k a) |