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_2 or ~p_12. p_12 or ~t_3. s_2 -> t_3.
p_12 -> s_2 can be inferred via the rewriting rule. t_3 -> p_12 can be inferred via the rewriting rule.