What do I call a method that's the dual of `map`, i.e. mapping over a *contravariant* type. (Is "dual" the right word here?!)
-
-
-
@adelbertchang Cool - thanks! :) - Show replies
New conversation -
-
-
@propensive What@adelbertchang said. And no, it's not dual :-) Functors are self-dual. -
@larsr_h@adelbertchang I'm glad you understood my clumsily-worded question so quickly!
End of conversation
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.