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: t <-> q_3. ~q. q <-> q_3.
t -> q_3 can be inferred via the biconditional elimination rule. q -> q_3 can be inferred via the biconditional elimination rule. q_3 -> t can be inferred via the biconditional elimination rule. q_3 -> q can be inferred via the biconditional elimination rule. ~q_3 can be inferred via the biconditional elimination rule.