The groupoids package

[Tags:bsd3, deprecated, library]
Deprecated. in favor of semigroupoids

Haskell 98 Groupoids

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Versions 0.1, 0.1.1,,, 0.2, 0.2.1,,, 3.0, 3.0.1,,, 4.0
Change log CHANGELOG.markdown
Dependencies base (>=4 && <4.5 || >=4.6 && <5), semigroupoids (>=3) [details]
License BSD3
Copyright Copyright (C) 2011-2013 Edward A. Kmett
Author Edward A. Kmett
Maintainer Edward A. Kmett <>
Category Control, Categories
Home page
Bug tracker
Source repository head: git clone git://
Uploaded Sun Jan 6 23:36:03 UTC 2013 by EdwardKmett
Updated Thu May 28 08:18:50 UTC 2015 by AdamBergmark to revision 1
Distributions LTSHaskell:4.0, NixOS:4.0, Stackage:4.0
Downloads 13702 total (16 in the last 30 days)
1 []
Status Docs uploaded by user
Build status unknown [no reports yet]




Maintainer's Corner

For package maintainers and hackage trustees

Readme for groupoids

Readme for groupoids-


Build Status

A groupoid is a category where every arrow has an inverse. This package provides them for Haskell.

Contact Information

Contributions and bug reports are welcome!

Please feel free to contact me through github or on the #haskell IRC channel on

-Edward Kmett