Consider the following premises. forall x_17: P_17(x_17) <-> Q_17(x_17). forall x_17: P_17(x_17) or T_2(x_17). exists x_17: ~Q_17(x_17). Can we infer forall x_17: ~(T_2(x_17) or Q(x_17)) from them? If possible, name the inference rules being used at each step.
That contradicts the premises. Therefore the answer is no.