Like place, space as a whole is the indeterminate three-dimensional extension everywhere devoid of body, though it is not actually infinite – so much Philoponus concedes to Aristotle. Philoponus’ discussion of matter builds upon this conception of space. In the Physics commentary (687f.) he argues in a similar vein to Aristotle in Metaphysics VII 3: In abstracting all qualities and other determinations from body Aristotle arrived at a conception of characterless, undetermined matter, an idea of