[Haskell-cafe] AMP - how do you motivate this in teaching?

Joachim Breitner mail at joachim-breitner.de
Fri Nov 20 08:22:47 UTC 2015


thanks for your mail! I am circulating it to my Haskell teaching
colleagues, who are facing the same challenges as Johannes.

Am Donnerstag, den 19.11.2015, 21:00 -0430 schrieb Manuel Gómez:
> The three classes are distinguished by their expanding
> APIs, and it’s helpful, if you have enough time for the lesson, to
> show types that are Functor but not Applicative (e.g. «(,) e»).

There is the instance
    Monoid a => Applicative ((,) a)
Do you touch upon that, or pretend it is not there?


Joachim “nomeata” Breitner
  mail at joachim-breitner.dehttp://www.joachim-breitner.de/
  Jabber: nomeata at joachim-breitner.de  • GPG-Key: 0xF0FBF51F
  Debian Developer: nomeata at debian.org

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