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: Q(z) <-> P(z). forall z: P(z) or ~T(z). forall z: Q(z) -> T(z).
forall z: T(z) -> P(z) can be inferred via the universal rewriting rule. exists z: Q(z) -> P(z) can be inferred via the existential biconditional elimination rule. exists z: P(z) -> Q(z) can be inferred via the existential biconditional elimination rule.