What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: forall x_12: U_4(x_12) and Q_12(x_12). exists x_12: ~P_5(x_12). forall x_12: P_5(x_12) or S_4(x_12).
exists x_12: S_4(x_12) can be inferred via the existential disjunctive syllogism rule. forall x_12: U_4(x_12) can be inferred via the universal simplification rule. forall x_12: Q_12(x_12) can be inferred via the universal simplification rule.