What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? p -> ~R_15(h_4). forall x_15: ~P_15(x_15) or R_15(x_15). forall x_15: ~Q_15(x_15). forall x_15: P_15(x_15) or Q_15(x_15).
forall x_15: Q_15(x_15) or R_15(x_15).