---
tag: 1APZE11YEF
kind: concept
name: Trichotomy
sources:
  - wikipedia: en:76765067@r1368301704
    locator: Glossary of logic, section T
    note: adopted
    mention: wikipedia://en/76765067#L7P8
    sections: [Summary]
inventory: [GECR88B5K7]
---

## Summary

A relation R is trichotomous (or comparable) if and only if, for any objects x and y, either Rxy, or Ryx, or x = y.