Single Idea 18465

[catalogued under 8. Modes of Existence / A. Relations / 4. Formal Relations / b. Equivalence relation]

Full Idea

R is an equivalence relation on A iff R is reflexive, symmetric and transitive on A.

Gist of Idea

An 'equivalence' relation is one which is reflexive, symmetric and transitive

Source

Kenneth Kunen (The Foundations of Mathematics (2nd ed) [2012], I.7.1)

Book Reference

Kunen,Kenneth: 'The Foundations of Mathematics' [College Publications 2012], p.24

---