DISPOSITIONS AS CATEGORICAL STATES
Let us consider a statement such as ‘This glass is brittle’ said truly of an unstruck glass. It is uncontroversial that this statement entails a counterfactual statement along these general lines: If this glass had been suitably struck, then this striking would have caused the glass to shatter. We need not worry about the detail of this statement. To do so would deflect attention from the more fundamental ontological issues that we wish to consider.