What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists x_6: P_2(x_6) or W(x_6). forall x_6: W(x_6) <-> P_6(x_6). forall x_6: P_6(x_6) or ~P_2(x_6).
forall x_6: P_2(x_6) -> P_6(x_6). forall x_6: W(x_6) -> P_6(x_6). forall x_6: P_6(x_6) -> W(x_6).