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Sat Jul 28 14:59:27 EDT 2018

Arrow, Applicative

https://stackoverflow.com/questions/24668313/arrows-are-exactly-equivalent-to-applicative-functors

    "In practice, an occasional >>= between applicatives gives this
    full monadic power whilst keeping the nice pure-feel syntax of
    Applicative. – AndrewC Jul 10 '14"

Exactly what I ran into with SeqApp.hs

Also in that page: Applicative can only combine outputs.  It's not
possible to take the output of one computation and use it to influence
another.




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