# subadditive function

> a function f such that f(a+b) ≤ f(a) + f(b)

**Wikidata**: [Q47501813](https://www.wikidata.org/wiki/Q47501813)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Subadditive_function)  
**Source**: https://4ort.xyz/entity/subadditive-function