What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_6: P_6(x_6) -> Q_6(x_6). P_6(e_2) or w_4. w_4 -> R_6(e_2). forall x_6: Q_6(x_6) -> R_6(x_6).
forall x_6: P_6(x_6) -> R_6(x_6).