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_14 or ~q_14. t <-> p_14. ~p. p -> t. t -> p.
~t can be inferred via the modus tollens rule. q_14 -> p_14 can be inferred via the rewriting rule. p <-> t can be inferred via the biconditional introduction rule. t <-> p can be inferred via the biconditional introduction rule. t -> p_14 can be inferred via the biconditional elimination rule. p_14 -> t can be inferred via the biconditional elimination rule.