Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 2 - Set Theory - 2.1 Basic Set Concepts - Exercise Set 2.1: 123

Answer

The cardinality of a finite set is finite itself, while the cardinality of an infinite set is infinite.

Work Step by Step

This is because cardinality is the number of distinct elements, and a finite set has a finite amount of them, while the infinite one has an infinite number of elements.
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