SummaryTHIS PAPER has two main purposes. First, to give an exposition of Stenius' approach to the logic of statements of disjunctive permission in such a way as to make manifest its differences with other main lines of attack in the literature. Second, to draw attention to some linguistic phenomena extending beyond the confines of deon‐tic discourse, that appear to reveal the inappropriateness of the other lines described, and to provide some confirmation of an approach, which we shall call the “checklist conception”, that can be seen as a development of that of Stenius. This “checklist conception” also throws light on the behaviour of counterfactual conditionals with disjunctive an