Deprecated

In favour of

representable-functors

Representable functors http://github.com/ekmett/representable-functors/

Latest on Hackage:3.2.0.2

This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.

BSD3 licensed by Edward A. Kmett
Maintained by Edward A. Kmett

representable-functors

Build Status

This package provides representable functors for haskell. In category theory a representable functor (more pedantically a corepresentable functor) is one such that f a is isomorphic to x -> a. We choose the name Representable here because we are talking about haskell Functor instances, and they are all covariant, so this is the more natural notion of representability 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 irc.freenode.net.

-Edward Kmett

Changes

3.2.0.2 Updated array dependency Added proper upper bounds on dependencies

3.2.0.1

  • Fixed issue #1. Did RULES parsing change with GHC 7.6.3?

3.2

  • Added Day Convolution

3.1

  • Required Distributive as a superclass
  • Renamed Data.Functor.Corepresentable to Data.Functor.Contravariant.Representable to finally clean up this long-standing abuse of terminology.

3.0.1

  • Removed intra-package dependencies
  • Added README.markdown
  • Added IRC build-bot notification
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