This package has been absorbed into semigroupoids 4.0 http://github.com/ekmett/groupoids/
See all snapshots groupoids appears in
There are no documented modules for this package.
A groupoid is a category where every arrow has an inverse. This package provides them for Haskell.
Contributions and bug reports are welcome!
Please feel free to contact me through github or on the #haskell IRC channel on irc.freenode.net.