Equality of Cardinal Numbers - kipawaa/Proof-Tree GitHub Wiki

Statement

Two Cardinal Numbers $\lvert X \rvert$ and $\lvert Y \rvert$ are equal, iff there exists a bijection $f : X \to Y$.

Explanation

Proof(s)

History

Applications

Links

Dependencies

• Cardinal Numbers

Dependents

Sources

• Hrbacek, K., & Jech, T. (1999). Introduction to Set Theory, Revised and Expanded (3rd ed.). CRC Press. https://doi.org/10.1201/9781315274096