module type SET = sig .. end
sig
end
Set.S
type elt
type t
val empty : t
t
val singleton : elt -> t
elt -> t
val add : elt -> t -> t
elt -> t -> t
val iter : (elt -> unit) -> t -> unit
(elt -> unit) -> t -> unit
val fold : (elt -> 'a -> 'a) -> t -> 'a -> 'a
(elt -> 'a -> 'a) -> t -> 'a -> 'a