Consider the following premises. R_14(a_14). forall x_14: R_14(x_14) -> S_14(x_14). p. Can we infer ~S_14(a_14) from them? If possible, name the inference rules being used at each step.
 From forall x_14: R_14(x_14) -> S_14(x_14) we can infer R_14(a_14) -> S_14(a_14) via universal instantiation. Finally, from R_14(a_14) -> S_14(a_14), R_14(a_14) we can infer S_14(a_14) via modus ponens, which contradicts ~S_14(a_14). Therefore, the answer is no.