# problem of universals

> philosophical question of whether properties exist, and if so, what they are

**Wikidata**: [Q6092032](https://www.wikidata.org/wiki/Q6092032)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Problem_of_universals)  
**Source**: https://4ort.xyz/entity/problem-of-universals


## References

1. Nuovo soggettario
2. Freebase Data Dumps. 2013
3. Integrated Authority File
4. National Library of Israel Names and Subjects Authority File
5. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)