The function space type constructor t->u is a functor where (f->g)(h)(x)=g(h(f(x))), but current programming languages don't exploit this.
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Why would you do that? What are some uses? Can you give a concrete example? Thanks
Thanks. Twitter will use this to make your timeline better. UndoUndo
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Isn't this how you implement type hierarchies in Scheme and descendants?
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Never mind, that's what you said :-)
End of conversation
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