Exponentiation of Cardinal Numbers - kipawaa/Proof-Tree GitHub Wiki
Statement
If $\kappa = \lvert A \rvert, \lambda = \lvert B \rvert$ are Finite Cardinal Numbers such that not both $A$ and $B$ are the Empty Set, we have that $\kappa^\lambda = \lvert A^B \rvert$.
Explanation
Proof(s)
History
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Sources
- Hrbacek, K., & Jech, T. (1999). Introduction to Set Theory, Revised and Expanded (3rd ed.). CRC Press. https://doi.org/10.1201/9781315274096