Aristotle - index for METAPHYSICA Book 13 Part 1

On whether there are any other than sensible substances

Paragraph 1	We have stated what is the substance of sensible things, dealing in the treatise on physics with matter, and later with the substance which has actual existence.
Paragraph 2	Two opinions are held on this subject;
Paragraph 3	If the objects of mathematics exist, they must exist either in sensible objects, as some say, or separate from sensible objects (and this also is said by some);