What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: S_10(a_10) <-> p. q_12. forall x_10: S(x_10) -> S_10(x_10). p -> ~q_12.
~p can be inferred via the modus tollens rule. S_10(a_10) -> p can be inferred via the biconditional elimination rule. p -> S_10(a_10) can be inferred via the biconditional elimination rule.