Consider the following premises. p. forall x_14: P_14(x_14) or P(x_14). R_14(a_12) -> r_6. forall x_14: ~P_14(x_14) or R_14(x_14). P(a_12) -> r_6. Can we infer ~p from them? If possible, name the inference rules being used at each step.
That contradicts the premises. Therefore the answer is no.