Thinking Mathematically (6th Edition)

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

Chapter 2 - Set Theory - 2.2 Subsets - Exercise Set 2.2 - Page 68: 27


Work Step by Step

{x|x is a man or a woman} ⊆ {x|x is a person} The first set is subset of second set because a man or a woman is always be a person, and a person will either be a man or woman Therefore they are equal sets.
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