 Von Fintel and Yablo offer an explanation for these minimal pairs that draws upon the nature of belief revision. Their idea is that the false presupposition is added to the evaluator’s set of beliefs and is tested against that set of beliefs. So, if we test ‘The king of France read Anna Karenina’ against a typical set of beliefs, there is no clash with existing beliefs. But if we test ‘The king of France wrote Anna Karenina’ against this set of beliefs, we get a clash. These are the cases where we judge the sentence false.