Abstract

It is a central tenet of (neo-)Aristotelian metaphysics that reality is structured by relations of existential priority or, conversely put, existential dependence: some entities depend for their existence on other entities that help to bring about their existence. After briefly looking at the origins of this idea in Aristotle’s Categories, the chapter examines some contemporary definitions of existential dependence. A notion of existential dependence defined in terms of metaphysical explanation is shown to fulfill numerous Aristotelian desiderata. It is discussed how such explanations can be underwritten by conceptual connections and at the same time be a guide to the priority-structure of non-linguistic reality; finally, the chapter defends the proposed notion of existential dependence against objections from the recent literature.