Disagreement without belief

When theorising about disagreement, it is tempting to begin with a person's belief that p and ask what mental state one must have in order to disagree with it. This is the wrong way to go; the paper argues that people may also disagree with attitudes that are not beliefs. It then examines whether several existing theories of disagreement can account for this phenomenon. It argues that its own normative theory of disagreement gives the best account, and so, given that there is good reason to believe disagreement without belief is possible, there is good reason to think that disagreement itself is normative.