Cardinality

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Section 2.2 Cardinality

To find the cardinality of a set, we use the cardinality() function.

Alternatively, we can use the Python len() function. Instead of returning a Sage Integer, the len() function returns a Python int.

In many cases, using Sage classes and functions will provide more functionality. In the following example, cardinality() gives us a valid output while len() does not.

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