§ 117 n. 1. On the present topic cf. Cantor, Math. Annalen, Vol. XLVI, §§ 5, 6, where most of what follows will be found. ↩

§ 118 n. 1. Cantor employs for this number the Hebrew Aleph with the suffix 0, but this notation is inconvenient. ↩

§ 118 n. 2. Math. Annalen, Vol. XLVI, § 6. ↩

The Principles of Mathematics was written by Bertrand Russell, and published in in 1903. It is now available in the Public Domain.