Category:Union of Disjoint Singletons is Doubleton
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This category contains pages concerning Union of Disjoint Singletons is Doubleton:
Let $\set a$ and $\set b$ be singletons such that $a \ne b$.
Then:
- $\set a \cup \set b = \set {a, b}$
Pages in category "Union of Disjoint Singletons is Doubleton"
The following 3 pages are in this category, out of 3 total.