# Cantor's theorem

> in set theory, the theorem that a set has a strictly smaller cardinality than its powerset

**Wikidata**: [Q474881](https://www.wikidata.org/wiki/Q474881)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Cantor's_theorem)  
**Source**: https://4ort.xyz/entity/cantor-s-theorem


## References

1. Freebase Data Dumps. 2013