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_17: P_17(x_17) <-> Q_17(x_17). forall x_17: ~P_17(x_17). s -> Q_17(a_14).
forall x_17: P_17(x_17) -> Q_17(x_17) can be inferred via the universal biconditional elimination rule. forall x_17: Q_17(x_17) -> P_17(x_17) can be inferred via the universal biconditional elimination rule. forall x_17: ~Q_17(x_17) can be inferred via the universal biconditional elimination rule.