 Kelly and Lin (forthcoming) use the following example to argue against Rational Monotonicity. There are just two people in Sophia's office, named Alice and Bob. She is interested in whether one of them owns a certain Ford. Let \(\beta\) be the sentence that Alice owns the Ford. Let \(\gamma\) be the sentence that Bob has the Ford. Sophia has inconclusive evidence that Alice owns the Ford–she saw her driving one just like it. She has weaker evidence that Bob owns the Ford–his brother owns a Ford dealership. Based on her total evidence \(\alpha\) she concludes \(\beta \vee \gamma\), i.e. that someone in the office owns the Ford, but does not go so far as inferring \(\beta\), or \(\gamma\). Then, Alice says that the Ford she was driving was rented and that she doesn't own a car. That defeats Sophia's main reason for \(\beta\vee\gamma\), and therefore she retracts her belief that someone in the office has a Ford. But since \( \alpha \not\mkern-7mu\dproves \neg \beta \), Rational Monotonicity requires her to retain belief in \(\beta\vee\gamma\) and conclude that Bob owns the Ford. However, there does not seem to be anything irrational about she has reasoned. This seems to be an illustration of Pollock’s (1987) point: the logic is going wrong because it is ignoring the structure of Sophia’s reasons.