[Haskell-cafe] Re: Category theory monad <----> Haskell monad

Chung-chieh Shan ccshan at post.harvard.edu
Mon Aug 22 10:13:06 EDT 2005

Michael Vanier <mvanier at cs.caltech.edu> wrote in article <20050819054742.5C785103BE4 at orchestra.cs.caltech.edu> in gmane.comp.lang.haskell.cafe:
> Basically, though, the Haskell implementation _is_ the category theoretic
> definition of monad, with bind/return used instead of (f)map/join/return as
> described below.

Doesn't the Haskell implementation really correspond to the notion of a
strong monad in category theory, once we take into account the fact that
free variables can occur anywhere in the arguments to bind and return?

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