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 RepresentableAlternate :
forall (n : nat) (f : naryFunc n) (A B : Formula),
SysPrf T (iffH A B) -> RepresentableHelp n f A -> RepresentableHelp n f B.