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 x: T(x) -> P_4(x). forall x: P_4(x) or ~P_1(x). exists x: R(x) or P_1(x). forall x: P_4(x) -> P_1(x). forall x: R(x) -> T(x).
forall x: T(x) -> P_1(x) can be inferred via the universal transitivity rule. forall x: R(x) -> P_4(x) can be inferred via the universal transitivity rule. forall x: P_1(x) -> P_4(x) can be inferred via the universal rewriting rule.