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: ~T(a_14). forall z: T(z) <-> R(z). W_3(a_7) -> R(a_14). forall x_7: W_3(x_7) <-> S_7(x_7).
forall z: T(z) -> R(z) can be inferred via the universal biconditional elimination rule. forall x_7: W_3(x_7) -> S_7(x_7) can be inferred via the universal biconditional elimination rule. forall z: R(z) -> T(z) can be inferred via the universal biconditional elimination rule. forall x_7: S_7(x_7) -> W_3(x_7) can be inferred via the universal biconditional elimination rule.