§ 140 n. 1. A part in this sense will also be sometimes called a simple or indivisible part. ↩
§ 140 n. 2. Cf. Phil. Werke, ed. Gerhardt, II, p. 315; also I, p. 338, V, pp. 144–5. ↩
§ 141 n. 1. In Leibniz's philosophy, all contingent things are infinite unities. ↩
The Principles of Mathematics was written by Bertrand Russell, and published in in 1903. It is now available in the Public Domain.