Consider the following premises. forall x_12: P_12(x_12) -> Q_12(x_12). exists x_12: ~Q_12(x_12). forall x_12: P_12(x_12). Can we infer forall x_12: ~(U(x_12) or R_2(x_12)) from them?
The premises are contradictory and we can infer anything from them. Therefore, the answer is yes.