# set of non-negative integers

> the set of positive integers and zero

**Wikidata**: [Q28777634](https://www.wikidata.org/wiki/Q28777634)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Set_of_natural_numbers)  
**Source**: https://4ort.xyz/entity/set-of-non-negative-integers


## References

1. [Springer Vieweg Verlag. 2012](https://books.google.de/books?id=oO-BNnhNYkMC&pg=PA137)