---
tag: 0RKF1ZT5JJ
kind: concept
name: Complement
aliases: [absolute-complement]
msc: ["03E20"]
sources:
  - url: https://en.wikipedia.org/wiki/Complement_(set_theory)
    locator: lead section
same_as:
  wikidata: Q242767
  wikipedia: Complement (set theory)
---

## Summary

The complement of a set is the set of all objects of the universe that are not elements of the set.