# Goursat's lemma

> lemma about subgroups of the direct product of two groups

**Wikidata**: [Q2387837](https://www.wikidata.org/wiki/Q2387837)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Goursat's_lemma)  
**Source**: https://4ort.xyz/entity/goursat-s-lemma


## References

1. Freebase Data Dumps. 2013