Definition Representable (n : nat) (f : naryFunc n)
(A : Formula) : Prop :=
(forall v : nat, In v (freeVarFormula LNN A) -> v <= n) /\
RepresentableHelp n f A.

Lemma Representable_ext :
forall (n : nat) (f g : naryFunc n) (A : Formula),
extEqual n f g -> RepresentableHelp n f A -> RepresentableHelp n g A.