(* *)
(***********************************************************************)
-(*
- Time-stamp: <Last modified on 2013-03-04 23:01:55 CET by Kim Nguyen>
-*)
-
(** Type equipped with an equality and hash function.
If [equal a b] then [(hash a) = (hash b)]
*)
val subset : t -> t -> bool
val iter : (elt -> unit) -> t -> unit
val fold : (elt -> 'a -> 'a) -> t -> 'a -> 'a
+ val fold_left : (elt -> 'a -> 'a) -> t -> 'a -> 'a
+ val fold_right : (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