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: R_1(x_17) or Q(x_17). forall x_17: P_17(x_17) -> Q_10(x_17). forall x_17: R_1(x_17) -> P_17(x_17). forall x_17: P_17(x_17) -> R_1(x_17). exists x_17: ~Q_10(x_17).
exists x_17: ~P_17(x_17) can be inferred via the existential modus tollens rule. forall x_17: R_1(x_17) -> Q_10(x_17) can be inferred via the universal transitivity rule. forall x_17: R_1(x_17) <-> P_17(x_17) can be inferred via the universal biconditional introduction rule. forall x_17: P_17(x_17) <-> R_1(x_17) can be inferred via the universal biconditional introduction rule.