[haskell-platform] #224: Lack of packages from Category Theory at Platform

[haskell-platform]

#224: Lack of packages from Category Theory at Platform
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 Reporter:  wvv          |       Owner:  dons
     Type:  enhancement  |      Status:  new 
 Priority:  major        |   Milestone:      
Component:  Platform     |    Keywords:      
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 There are lack of basics packages from Category Theory at Platform.

  Some Functors (Contvariant, Profunctors,..), Group (Groupoids,
  Semigroupoids,..), Comonads(..), some Monads.

  Most of not included modules are already collected here:
 http://hackage.haskell.org/package/category-extras

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Ticket URL: <http://trac.haskell.org/haskell-platform/ticket/224>
haskell-platform <http://trac.haskell.org/haskell-platform>
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