Fedora Packages

ghc-semigroupoids

Semigroupoids: Category sans id

Provides a wide array of (semi)groupoids and operations for working with them. A 'Semigroupoid' is a 'Category' without the requirement of identity arrows for every object in the category. A 'Category' is any 'Semigroupoid' for which the Yoneda lemma holds. When working with comonads you often have the '<*>' portion of an 'Applicative', but not the 'pure'. This was captured in Uustalu and Vene's "Essence of Dataflow Programming" in the form of the 'ComonadZip' class in the days before 'Applicative'. Apply provides a weaker invariant, but for the comonads used for data flow programming (found in the streams package), this invariant is preserved. Applicative function composition forms a semigroupoid.

Releases Overview

Release Stable Testing
Fedora Rawhide 5.3.5-1.fc35 -
Fedora 35 5.3.5-1.fc35 -
Fedora 34 5.3.4-5.fc34 -
Package Info
Related Packages

You can contact the maintainers of this package via email at ghc-semigroupoids dash maintainers at fedoraproject dot org.



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