Parameter Via_contramap_and_divide_and_conquer.Req

include Preface_specs.Divisible.WITH_DIVIDE_AND_CONQUER
type 'a t

The type held by the Divisible.

val divide : ('a -> 'b * 'c) -> 'b t -> 'c t -> 'a t

The contravariant version of apply from Applicative.

val conquer : 'a t

Provide and empty value.

include Preface_specs.Contravariant.WITH_CONTRAMAP with type 'a t := 'a t
val contramap : ('a -> 'b) -> 'b t -> 'a t

Mapping over from 'a to 'b over 'b t to 'a t.