[[Glossary of categories]] # Hask The Category of Haskell Types, called $\Hask$, is a category with [[Haskell type]] for objects and functions for morphisms. It behaves very similarly to [[Category of sets]]. Due to a few minor issues, $\Hask$ is not formally a category. However in the majority of cases it makes sense and is useful to use categorical reasoning. See [[Category-theoretic Objects in Haskell MOC]] --- #state/develop | #SemBr