name: data-category version: 0.5.1 synopsis: Category theory description: Data-category is a collection of categories, and some categorical constructions on them. . You can restrict the types of the objects of your category by using a GADT for the arrow type. To be able to proof to the compiler that a type is an object in some category, objects also need to be represented at the value level. The corresponding identity arrow of the object is used for that. . See the 'Boolean' and 'Product' categories for some examples. . Note: Strictly speaking this package defines Hask-enriched categories, not ordinary categories (which are Set-enriched.) In practice this means we are allowed to ignore 'undefined' (f.e. when talking about uniqueness of morphisms), and we can treat the categories as normal categories. category: Math license: BSD3 license-file: LICENSE author: Sjoerd Visscher maintainer: sjoerd@w3future.com stability: experimental homepage: http://github.com/sjoerdvisscher/data-category bug-reports: http://github.com/sjoerdvisscher/data-category/issues build-type: Simple cabal-version: >= 1.10 Library exposed-modules: Data.Category, Data.Category.Functor, Data.Category.NaturalTransformation, Data.Category.Unit, Data.Category.Void, Data.Category.Product, Data.Category.Coproduct, Data.Category.RepresentableFunctor, Data.Category.Adjunction, Data.Category.Limit, Data.Category.Monoidal, Data.Category.CartesianClosed, Data.Category.Yoneda, Data.Category.Presheaf, Data.Category.Boolean, Data.Category.Fix, Data.Category.Kleisli, Data.Category.Dialg, Data.Category.NNO, Data.Category.Simplex, Data.Category.Comma default-language: Haskell2010 source-repository head type: git location: git://github.com/sjoerdvisscher/data-category.git