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Free categories, free arrows and free categories with monadic actions
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README.md

Free Category

Maintainer: coot CircleCI

This package contains efficient free categories. There are two presentations:

  • using realtime queues (C. Okasaki 'Pure Functional Data Structures')
  • using continuation passing style

Free arrows and free Kleisli categories are also included.

Free categories are useful to model state machines in a simple yet type safe manner. 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