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 - Page 58: 1

Answer

Well defined

Work Step by Step

There is a distinct number of US Presidents. Thus, the Presidents can be collected in a set, which will be well-defined.
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