| category-extras-0.53.6: Various modules and constructs inspired by category theory | Contents | Index |
|
Control.Morphism.Span | Portability | non-portable (rank-2 polymorphism) | Stability | experimental | Maintainer | Edward Kmett <ekmett@gmail.com> |
|
|
|
Description |
Spans and Cospans
http://en.wikipedia.org/wiki/Span_(category_theory)
|
|
|
Documentation |
|
newtype Span (~>) x y z |
Constructors | Span | | runSpan :: (y ~> x, y ~> z) | |
|
|
|
|
newtype Cospan (~>) x y z |
Constructors | Cospan | | runCospan :: (x ~> y, z ~> y) | |
|
|
|
|
Produced by Haddock version 2.1.0 |