free-category: Free category

[ algebra, category, category-theory, control, library, monads, mpl ] [ Propose Tags ]

Free categories

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Dependencies base (>=4.9 && <5), free-algebras (>= [details]
License MPL-2.0
Copyright (c) 2018 Marcin Szamotulski
Author Marcin Szamotulski
Category Algebra, Control, Monads, Category
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Source repo head: git clone
Uploaded by coot at 2019-01-26T10:12:57Z
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Downloads 2188 total (3 in the last 30 days)
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Status Docs available [build log]
Last success reported on 2019-01-26 [all 1 reports]

Readme for free-category-

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Free Category

Maintainer: coot CircleCI

This package introduces variouos presentations of free categories in Haskell.

Free categories are useful to model state machines in a simple yet type safe way and for that purpose Kleisli categroies are a very useful target which allows to include monadic computations. This packge contains a useful generalisation of Kliesli categories captured by EffCategory class (effectful categories), and a (free) transformer which lifts a category to an effectful one.

Some examples