Answer
cardinal, $n(A)$
Work Step by Step
The number of distinct elements in a finite set is called its cardinal number. If $X$ represents the set, this number is represented by $n(X)$.
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 2 - Set Theory - 2.1 Basic Set Concepts - Concept and Vocabulary Check - Page 58: 5
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