The Principles of Mathematics (1903)

Peano's Symbolic Logic

  1. § 31. Mathematical and philosophical definitions
  2. § 32. Peano’s indefinables
  3. § 33. Elementary definitions
  4. § 34. Peano’s primitive propositions
  5. § 35. Negation and disjunction
  6. § 36. Existence and the null-class

§ 31 n. 1. E.g. F. 1901, p. 6; F. 1897, Part I, pp. 62–63.

§ 32 n. 1. F. 1901 and R. d. M. Vol. VII, No. 1 (1900).

§ 32 n. 2. F. 1897, Part I.

§ 33 n. 1. In consequence of the criticisms of Padoa, R. d. M. Vol. VI, p. 112.

§ 33 n. 2. R. d. M. Vol. VII, No. 1, p. 23; F. 1901, p. 21, § 2, Pro. 4. 0, Note.

§ 34 n. 1. See e.g. F. 1901, Part I, § 1, Prop. 3. 3 (p. 10).

§ 36 n. 1. E.g. F. 1901, Part I, § 10, Props. 1. 0. 01 (p. 33).

§ 36 n. 2. See my article Sur la logique des relations, R. d. M. Vol. VII, 2 (1901).