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 -> t. q -> q_6. t -> q. q_6 -> p.
p -> q can be inferred via the transitivity rule. q -> p can be inferred via the transitivity rule. t -> q_6 can be inferred via the transitivity rule. q_6 -> t can be inferred via the transitivity rule.