module Order: sig .. end
sig
end
val lexicographic : (X.t -> X.t -> bool) -> Monoid.Free.t -> Monoid.Free.t -> bool
(X.t -> X.t -> bool) -> Monoid.Free.t -> Monoid.Free.t -> bool
val deglex : (X.t -> X.t -> bool) -> Monoid.Free.t -> Monoid.Free.t -> bool