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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.
This package provides the documentation for a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.
haskell-semigroupoids (22.214.171.124-1) unstable; urgency=low * New upstream release -- Joachim Breitner <firstname.lastname@example.org> Thu, 17 May 2012 12:52:20 +0200 haskell-semigroupoids (126.96.36.199-1) unstable; urgency=low * New upstream release -- Joachim Breitner <email@example.com> Sat, 04 Feb 2012 19:43:52 +0100 haskell-semigroupoids (1.2.6-1) unstable; urgency=low * Initial release. -- I more»
Format-Specification: http://svn.debian.org/wsvn/dep/web/deps/dep5.mdwn?op=file&rev=135 Name: semigroupoids Maintainer: Edward A. Kmett <firstname.lastname@example.org> Source: http://hackage.haskell.org/package/semigroupoids Copyright: (C) 2007-2011 Edward Kmett License: BSD All rights reserved. . Redistribution and use in source and binary forms, with or without modification, are permitted provided that more»