What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x: W_3(x) -> P_3(x). P_3(f) <-> w_1. w_1 or W_3(f).
R_1(f) -> w_1. P_3(f) -> w_1. w_1 -> P_3(f).