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_2(z) <-> Q(z). forall z: ~W_3(z). forall z: T_2(z) -> W_3(z).
forall z: ~T_2(z) can be inferred via the universal modus tollens rule. exists z: T_2(z) -> Q(z) can be inferred via the existential biconditional elimination rule. exists z: Q(z) -> T_2(z) can be inferred via the existential biconditional elimination rule.