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_19. t_2 <-> q_16. ~t_2. q -> q_16. p_19 -> t.
t can be inferred via the modus ponens rule. p_19 and ~t_2 can be inferred via the conjunction rule. ~t_2 and p_19 can be inferred via the conjunction rule. t_2 -> q_16 can be inferred via the biconditional elimination rule. q_16 -> t_2 can be inferred via the biconditional elimination rule. ~q_16 can be inferred via the biconditional elimination rule.