# Banach–Tarski paradox

> theorem that there exists a decomposition of a unit solid ball into a finite number of disjoint subsets, which can be put back together in a different way to yield two identical copies of the unit sphere

**Wikidata**: [Q737851](https://www.wikidata.org/wiki/Q737851)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Banach–Tarski_paradox)  
**Source**: https://4ort.xyz/entity/banach-tarski-paradox


## References

1. Integrated Authority File
2. SUDOC
3. Freebase Data Dumps. 2013
4. Faceted Application of Subject Terminology
5. National Library of Israel