category-theory

# category-theory This library provides basic category theory functionality such as the Monad class and instances. ## Licence The package is licensed under the BSD-2-Clause license; for details, see the [LICENSE](/LICENSE) file. Some modules were ported from Haskell and they are provided under the compatible Haskell's 3-clause BSD license (see [LICENSE.BSD3](LICENSE.BSD3)). - Control.Arrow - Control.Category - Data.Foldable - Data.Traversable The views and conclusions contained in the software and documentation are those of the authors and should not be interpreted as representing official policies, either expressed or implied, of Radboud University Nijmegen.

# Changelog #### 1.2.1 - Chore: accept base v4. ### 1.2.0 - Feature: Add `Compose` functor. #### 1.1.1 - Chore: support base `3.0`. ### 1.1.0 - Add MonadPlus and MonadFail instances for maybe and list types. - Add instances for the Either type. ## 1.0.0 - Initial version, import modules from clean platform v0.3.34 and destill all category theory modules and add all instances for the builtin types. - Remove `return` (as discussed in https://gitlab.com/clean-and-itasks/clean-platform/-/issues/118). - Move `MaybeT` from `Data.Maybe` to `Control.Monad.Maybe`.