[Haskell-cafe] Re: Can we come out of a monad?

[Christopher Witte]

On 3 August 2010 01:34, Richard O'Keefe <ok at cs.otago.ac.nz> wrote:

> There's a thing I'm still finding extremely hard about monads,
> and that's how to get into the frame of mind where inventing
> things like Monad and Applicative and Arrows is something I could
> do myself.  Functor, yes, I could have invented Functor.
> But not the others.
>

Maybe looking at Sigfpe's blog post You Could Have Invented Monads! (And
Maybe You Already
Have.)<http://blog.sigfpe.com/2006/08/you-could-have-invented-monads-and.html>will
help.


Chris.
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