Sourcetype 'a t = private Z.t * Z.t Sourceval add : ?unsafe:bool -> 'a t -> 'b t -> unit t Sourceval add_left : ?unsafe:bool -> 'a t -> 'b t -> 'a t Sourceval sub_left : ?unsafe:bool -> 'a t -> 'b t -> 'a t Sourceval succ : ?unsafe:bool -> 'a t -> 'a t