---
tag: 0X1JXT47GA
kind: concept
name: Subgroup
msc: [20A05]
sources:
  - url: https://en.wikipedia.org/wiki/Subgroup
    locator: lead section
same_as:
  wikidata: Q466109
  wikipedia: Subgroup
---

## Summary

A subgroup of a group is a subset that is itself a group under the same operation.