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_22: ~P_13(x_22). forall x_22: T(x_22) -> W(x_22). exists x_22: P_13(x_22) or T(x_22). forall x_22: R_1(x_22) <-> W(x_22).
exists x_22: T(x_22) can be inferred via the existential disjunctive syllogism rule. forall x_22: R_1(x_22) -> W(x_22) can be inferred via the universal biconditional elimination rule. forall x_22: W(x_22) -> R_1(x_22) can be inferred via the universal biconditional elimination rule.