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 -> ~q_5. t_2. q_5.
~s can be inferred via the modus tollens rule. t_2 and q_5 can be inferred via the conjunction rule. q_5 and t_2 can be inferred via the conjunction rule.