Consider the following premises. forall x_17: ~Q_17(x_17). forall x_17: ~P_17(x_17). t -> ~S(b). forall x_17: P_17(x_17) or Q_17(x_17). Can we infer t from them? If possible, name the inference rules being used at each step.
The premises are contradictory and we can infer anything from them. Therefore, the answer is yes.