Parameter Over_functor_via_lift2.Req

type ('a, 'index) t = ('a, 'index) Functor.t

The type held by the Indexed Apply.

val lift2 : ('a -> 'b -> 'c) -> ('a, 'index) t -> ('b, 'index) t -> ('c, 'index) t

Lift a binary function that acts on arbitrary values into a function that acts t values.