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_5: T(x_5) or U_1(x_5). exists x_5: U_1(x_5) -> ~Q_5(x_5). forall x_5: ~T(x_5) or Q_1(x_5). forall x_5: Q_5(x_5).
exists x_5: ~U_1(x_5) can be inferred via the existential modus tollens rule. forall x_5: U_1(x_5) or Q_1(x_5) can be inferred via the universal resolution rule.