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 z_4: T_3(z_4) -> R_4(z_4). forall z_4: Q(z_4) <-> R_4(z_4). exists z_4: T_3(z_4) or ~Q(z_4).
exists z_4: Q(z_4) -> T_3(z_4) can be inferred via the existential rewriting rule. forall z_4: Q(z_4) -> R_4(z_4) can be inferred via the universal biconditional elimination rule. forall z_4: R_4(z_4) -> Q(z_4) can be inferred via the universal biconditional elimination rule.