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: q_2 <-> q_10. q_2 <-> q_10.
q_2 -> q_10 can be inferred via the biconditional elimination rule. q_2 -> q_10 can be inferred via the biconditional elimination rule. q_10 -> q_2 can be inferred via the biconditional elimination rule. q_10 -> q_2 can be inferred via the biconditional elimination rule.