What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_16: R_16(x_16) <-> S_16(x_16). p_8 <-> R_16(f_1). ~S_16(f_1). ~p_8 -> t.
p_8 -> R_16(f_1). R_16(f_1) -> p_8. forall x_16: R_16(x_16) -> S_16(x_16). forall x_16: S_16(x_16) -> R_16(x_16).