# Dynkin system

> Family closed under complements and countable unions of disjoint sets

**Wikidata**: [Q1935689](https://www.wikidata.org/wiki/Q1935689)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Dynkin_system)  
**Source**: https://4ort.xyz/entity/dynkin-system


## References

1. Freebase Data Dumps. 2013