Objective Caml version 3.09.3

# module L = List;;
module L :
  sig
    val length : 'a list -> int
    val hd : 'a list -> 'a
    val tl : 'a list -> 'a list
    val nth : 'a list -> int -> 'a
    val rev : 'a list -> 'a list
    val append : 'a list -> 'a list -> 'a list
    val concat : 'a list list -> 'a list
    (* ... bunch of functions removed here ... *)
    val merge : ('a -> 'a -> int) -> 'a list -> 'a list -> 'a list
  end