Note 95 — Chapter IV · THE WORLD OF THINGS—(1) SUBSTANCE, QUALITY, AND RELATION
Reading edition
See, e.g., Dedekind, op. cit., § 2: “It frequently happens that different things a, b, c ... are apprehended upon whatsoever occasion under a common point of view, mentally put together, and it is then said that they form a system; the things a, b, c ... are named the elements of the system”; and § 3 (definitions of whole and part).