Consider the following premises. forall x_8: Q_7(x_8) -> R_8(x_8). forall x_8: P_3(x_8). forall x_8: P_8(x_8) -> Q_8(x_8). forall x_8: Q_8(x_8) -> R_8(x_8). forall x_8: P_8(x_8) or Q_7(x_8). Can we infer ~P_3(a_2) from them?
That contradicts the premises. Therefore the answer is no.