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_11: S_1(x_11) -> R(x_11). forall x_11: ~P_10(x_11) or S_1(x_11). forall x_11: R(x_11) -> T(x_11). forall x_11: T(x_11) -> R(x_11). forall x_11: P_10(x_11) or T(x_11). exists x_11: Q_2(x_11).
forall x_11: S_1(x_11) -> T(x_11) can be inferred via the universal transitivity rule. forall x_11: T(x_11) or S_1(x_11) can be inferred via the universal resolution rule. forall x_11: R(x_11) <-> T(x_11) can be inferred via the universal biconditional introduction rule. forall x_11: T(x_11) <-> R(x_11) can be inferred via the universal biconditional introduction rule.