Very tricky/subtle Scala behavior when a Set is an intermediate in a series of flatMaps/for-comprehension: https://gist.github.com/ryanlecompte/5497801 …
@jedws @ryanlecompte @greenrd I understand the issue in Haskell, since you need at least an Eq, but all Scala types have == /cc @larsr_h
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@tixxit@jedws@ryanlecompte@greenrd@larsr_h it's valid functor in subcategory of Haskell. Heterogeneous flatMaps are unprincipled though!Thanks. Twitter will use this to make your timeline better. UndoUndo
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