# necessity and sufficiency

> conditional or implicational relationship between two statements: a necessary condition is one which must be present in order for another condition to occur, while a sufficient condition is one which produces the said condition

**Wikidata**: [Q875267](https://www.wikidata.org/wiki/Q875267)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Necessity_and_sufficiency)  
**Source**: https://4ort.xyz/entity/necessity-and-sufficiency