What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? t -> ~R_3(f). forall x_15: Q(x_15) or R_3(x_15). forall x_15: Q_15(x_15). forall x_15: Q(x_15) -> ~Q_15(x_15).
forall x_15: ~Q(x_15).