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_6 -> t. t -> t_2. t_2 -> w. w -> p_6.
p_6 -> t_2 can be inferred via the transitivity rule. t -> w can be inferred via the transitivity rule. t_2 -> p_6 can be inferred via the transitivity rule. w -> t can be inferred via the transitivity rule.