2.4. Relations and Functions
2.4.1. Cartesian Products
The Cartesian product of two sets,
and
, denoted by
, is the set of all ordered pairs
, where
is an element of and is an element of :8
![image](/api/v2/epubs/9780128054499/files/IMAGES/B9780128053041000114/main.stripin/si2284.gif)
![image](/api/v2/epubs/9780128054499/files/IMAGES/B9780128053041000114/main.stripin/si2653.gif)
![image](/api/v2/epubs/9780128054499/files/IMAGES/B9780128053041000114/main.stripin/si2654.gif)
![image](/api/v2/epubs/9780128054499/files/IMAGES/B9780128053041000114/main.stripin/si2655.gif)
![image](/api/v2/epubs/9780128054499/files/IMAGES/B9780128053041000114/main.stripin/si21.gif)
(2.4.1)
For example, if
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