What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_13: Q_5(x_13) -> R_1(x_13). forall x_13: R(x_13). forall x_13: P(x_13) <-> R_1(x_13). forall x_13: Q_2(x_13) -> Q_5(x_13). forall x_13: R(x_13) -> Q_2(x_13).
forall x_13: Q_2(x_13). forall x_13: Q_2(x_13) -> R_1(x_13). forall x_13: R(x_13) -> Q_5(x_13). forall x_13: P(x_13) -> R_1(x_13). forall x_13: R_1(x_13) -> P(x_13).