# binary relation

> set of ordered pairs with first element in A and second element in B

**Wikidata**: [Q130901](https://www.wikidata.org/wiki/Q130901)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Binary_relation)  
**Source**: https://4ort.xyz/entity/binary-relation


## References

1. Elementi di teoria degli insiemi
2. Freebase Data Dumps. 2013
3. BabelNet
4. [Source](http://www.wolframalpha.com/input/?i=binary+relation)
5. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)