Abstract

In his commentary on Aristotle’s De generatione et corruptione Marsilius of Inghen defends the view—unusual in the Middle Ages—that there is no such thing as intermittent or “gappy” existence. Even God cannot restore things that have been corrupted. This paper examines Marsilius’s unusual position, connecting them to another view he defends, namely that a thing’s origins—and in particular the time at which it comes about—are essential to its numerical identity as the particular individual it is. I consider John Buridan and Nicole Oresme’s influence upon Marsilius’s views, and ultimately evaluate their plausibility, drawing on some recent work of Gyula Klima’s on gappy existence in Thomas Aquinas.