What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_6: ~T_4(x_6). forall x_6: U_4(x_6) -> T_4(x_6). s <-> U_4(e).
s -> U_4(e). U_4(e) -> s. forall x_6: ~U_4(x_6).