# Burnside's lemma

> lemma stating that, given a finite group G acting on a set, the number of orbits times |G| equals the sum (over every element of G) of the numbers of fixed points

**Wikidata**: [Q1330377](https://www.wikidata.org/wiki/Q1330377)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Burnside's_lemma)  
**Source**: https://4ort.xyz/entity/burnside-s-lemma


## References

1. Freebase Data Dumps. 2013