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: exists z: T(z). forall z: W_1(z) and P_2(z).
forall z: W_1(z) can be inferred via the universal simplification rule. forall z: P_2(z) can be inferred via the universal simplification rule.