What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_12: P_12(x_12) <-> P(x_12). forall x_12: P_8(x_12) or Q_8(x_12). forall x_12: R_8(x_12) -> P(x_12). forall x_12: Q_8(x_12) -> R_8(x_12). forall x_12: P_8(x_12) -> R_8(x_12).
forall x_12: Q_8(x_12) -> P(x_12). forall x_12: P_8(x_12) -> P(x_12). forall x_12: R_8(x_12). forall x_12: P_12(x_12) -> P(x_12). forall x_12: P(x_12) -> P_12(x_12).