 What Max said is true if and only if what Agnes said is true. But what Agnes said (viz., ‘Max’s claim is not true’) is true if and only if what Max said is not true. Hence, what Max said is true if and only if what Max said is not true. But, now, if what Max said is true or not true, then it is both true and not true. And this, as in the FLiar and ULiar cases, is a contradiction, implying, according to many logical theories, absurdity.