[Haskell-cafe] Categorical description for vector-space instance of AdditiveGroup (Maybe a)

Richard A. O'Keefe ok at cs.otago.ac.nz
Thu Sep 11 05:17:58 UTC 2014


This is a fool rushing in where angels fear to tread,
but having Nothing or Maybe v where v is in an additive
group reminds me a bit of Grassman Algebra and makes me
wonder if Maybe is really what's wanted here.




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