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_1 or ~q_2. t_1 <-> p_1. ~t_1.
q_2 -> p_1 can be inferred via the rewriting rule. t_1 -> p_1 can be inferred via the biconditional elimination rule. p_1 -> t_1 can be inferred via the biconditional elimination rule. ~p_1 can be inferred via the biconditional elimination rule.