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. p or q_2. w or q_24. s_1 <-> q_24. w -> s_1.
q_2 can be inferred via the disjunctive syllogism rule. s_1 -> q_24 can be inferred via the biconditional elimination rule. q_24 -> s_1 can be inferred via the biconditional elimination rule.