0. Set of symbols
1. Alphabet
2. Deduction system
3. Theory
4. Zermelo-Fraenkel set theory
5. Set
6. Binary cartesian set product
7. Binary relation
8. Map
9. Function
10. Real function
11. Euclidean real function
12. Basic real function
13. Basic rational function
Basic integer function
Formulation 0
Let $\mathbb{Z}$ be the D367: Set of basic integers.
A D18: Map $f : X \to Y$ is a basic integer function if and only if \begin{equation} Y \subseteq \mathbb{Z} \end{equation}
Child definitions
» D4949: Basic natural number function