# functor

> in category theory, a mapping between categories that preserves their structure (identity morphisms, composition of morphisms)

**Wikidata**: [Q864475](https://www.wikidata.org/wiki/Q864475)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Functor)  
**Source**: https://4ort.xyz/entity/functor


## References

1. History of Homological Algebra
2. Freebase Data Dumps. 2013
3. Quora
4. KBpedia
5. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)