Set Union/Examples/3 Arbitrarily Chosen Sets

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Example of Set Union

Let:

\(\displaystyle A_1\) \(=\) \(\displaystyle \set {1, 2, 3, 4}\) $\quad$ $\quad$
\(\displaystyle A_2\) \(=\) \(\displaystyle \set {1, 2, 5}\) $\quad$ $\quad$
\(\displaystyle A_3\) \(=\) \(\displaystyle \set {2, 4, 6, 8, 12}\) $\quad$ $\quad$

Then:

$A_1 \cup A_2 \cup A_3 = \set {1, 2, 3, 4, 5, 6, 8, 12}$


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