Module Ptset

module Ptset: sig .. end

type t 
type elt = int 
val empty : t
val is_empty : t -> bool
val mem : elt -> t -> bool
val add : elt -> t -> t
val singleton : elt -> t
val remove : elt -> t -> t
val union : t -> t -> t
val subset : t -> t -> bool
val intersect : t -> t -> bool
val inter : t -> t -> t
val diff : t -> t -> t
val equal : t -> t -> bool
val compare : t -> t -> int
val elements : t -> elt list
val choose : t -> elt
val cardinal : t -> int
val iter : (elt -> unit) -> t -> unit
val map : (elt -> elt) -> t -> t
val fold : (elt -> 'a -> 'a) -> t -> 'a -> 'a
val for_all : (elt -> bool) -> t -> bool
val exists : (elt -> bool) -> t -> bool
val filter : (elt -> bool) -> t -> t
val partition : (elt -> bool) -> t -> t * t
val split : elt -> t -> t * bool * t
val find : elt -> t -> elt
val min_elt : t -> elt
val max_elt : t -> elt
val of_list : elt list -> t