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: w -> q_11. t_2 -> p_16. t_2 -> w. ~q_11. p_16 -> t_2.
~w can be inferred via the modus tollens rule. t_2 -> q_11 can be inferred via the transitivity rule. p_16 -> w can be inferred via the transitivity rule. t_2 <-> p_16 can be inferred via the biconditional introduction rule. p_16 <-> t_2 can be inferred via the biconditional introduction rule.