FM.R
type t = r
val zero : t
val add : t -> t -> t
val neg : t -> t
val one : t
val mul : t -> t -> t
val sub : t -> t -> t
val of_int : int -> t
val compare : t -> t -> int
val equal : t -> t -> bool
val pp : t Basic_structures__Intf_std.printer
val hash : t -> int