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_4. p. p_10 -> s_4. p_10 <-> w.
~p_10 can be inferred via the modus tollens rule. ~s_4 and p can be inferred via the conjunction rule. p and ~s_4 can be inferred via the conjunction rule. p_10 -> w can be inferred via the biconditional elimination rule. w -> p_10 can be inferred via the biconditional elimination rule.