more from Herbert B. Enderton

### Single Idea 9715

#### [catalogued under 4. Formal Logic / F. Set Theory ST / 3. Types of Set / e. Equivalence classes]

Full Idea

An 'equivalence relation' is a binary relation which is reflexive, and symmetric, and transitive.

Gist of Idea

An 'equivalence relation' is a reflexive, symmetric and transitive binary relation

Source

Herbert B. Enderton (A Mathematical Introduction to Logic (2nd) [2001], Ch.0)

Book Reference

Enderton,Herbert B.: 'A Mathematical Introduction to Logic' [Academic Press 2001], p.6