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: p_17 <-> w. ~w. p_4 and s.
p_4 can be inferred via the simplification rule. s can be inferred via the simplification rule. p_17 -> w can be inferred via the biconditional elimination rule. w -> p_17 can be inferred via the biconditional elimination rule. ~p_17 can be inferred via the biconditional elimination rule.