What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? W_4(a_14) <-> P_3(a_14). forall x: P_3(x) <-> W_4(x).
W_4(a_14) -> P_3(a_14). P_3(a_14) -> W_4(a_14). forall x: P_3(x) -> W_4(x). forall x: W_4(x) -> P_3(x).