Module Numbering.
Definition t := numbering.
Definition ge (n1 n2: numbering) : Prop :=
forall valu ge sp rs m,
numbering_holds valu ge sp rs m n2 ->
numbering_holds valu ge sp rs m n1.
Definition top := empty_numbering.

Lemma top_ge: forall x, ge top x.
Lemma refl_ge: forall x, ge x x.