Set Intersection/Examples/Overlapping Integer Sets

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Example of Set Intersection

Let:

\(\displaystyle A\) \(=\) \(\displaystyle \set {x \in \Z: 2 \le x}\)
\(\displaystyle B\) \(=\) \(\displaystyle \set {x \in \Z: x \le 5}\)

Then:

$A \cap B = \set {2, 3, 4, 5}$

and so is finite.


Sources