# nonstandard analysis

> alternative formulation of calculus using a logically rigorous notion of infinitesimal numbers

**Wikidata**: [Q1503766](https://www.wikidata.org/wiki/Q1503766)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Nonstandard_analysis)  
**Source**: https://4ort.xyz/entity/nonstandard-analysis


## References

1. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=60926)
2. Freebase Data Dumps. 2013
3. Integrated Authority File
4. Quora
5. National Library of Israel