Single Idea 10011

[catalogued under 5. Theory of Logic / D. Assumptions for Logic / 4. Identity in Logic]

Full Idea

Identity should he considered a logical notion only because it is the tip of a second-order iceberg - a level 1 relation with a pure second-order definition.

Gist of Idea

Identity is a level one relation with a second-order definition

Source

Harold Hodes (Logicism and Ontological Commits. of Arithmetic [1984])

Book Reference

-: 'Journal of Philosophy' [-], p.124