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: Q_11(a_1). forall x_11: T(x_11) or ~Q_11(x_11).
exists x: Q_11(x) can be inferred via the existential generalization rule. forall x_11: Q_11(x_11) -> T(x_11) can be inferred via the universal rewriting rule.