Single Idea 16497

[catalogued under 9. Objects / F. Identity among Objects / 2. Defining Identity]

Full Idea

The principle of Leibniz's Law marks off what is peculiar to identity and differentiates it in a way in which transitivity, symmetry and reflexivity (all shared by 'exact similarity, 'equality in pay', etc.) do not.

Clarification

Leibniz's Law here is the Indiscernibility of Identicals

Gist of Idea

Leibniz's Law (not transitivity, symmetry, reflexivity) marks what is peculiar to identity

Source

David Wiggins (Sameness and Substance [1980], 1.2)

Book Reference

Wiggins,David: 'Sameness and Substance' [Blackwell 1980], p.21