# complement

> unary operation on sets: the set of non-elements of the argument set

**Wikidata**: [Q242767](https://www.wikidata.org/wiki/Q242767)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Complement_(set_theory))  
**Source**: https://4ort.xyz/entity/complement-q242767


## References

1. Freebase Data Dumps. 2013