  Consideration of the Master Argument brought together three of Prior’s great interests: indeterminism, modal logic, and the logic of time. In the course of his reflections on the argument, Findlay’s footnote pushed its way to the front of his mind. His wife Mary remembered ‘his waking me one night, coming and sitting on my bed, and reading a footnote from John Findlay’s article on time, and saying he thought one could make a formalised tense logic’ (Kenny 1970: 336).