Axiom of Pairing - kipawaa/Proof-Tree GitHub Wiki
Statement
For any $A$ and $B$, there is a set $C$ such that $x \in C$ iff $x = A$ or $x = B$.
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