Full paper at my website

A note on the semantics of ability modals, in relation to the law of distribution over disjunction and free choice effects. Most current analyses of free choice need distribution over disjunction as an axiom for modals in order to correctly derive free choice inferences. Famously, ability modals fail to meet distribution over disjunction (Kenny 1976). Yet, they still give rise to free choice inferences. I propose that ability modals come with a excluded middle presupposition and show that this allows the calculation of free choice inferences without distribution over disjunction holding.