Answer
⊆
Work Step by Step
{x|x is a woman or a man} ⊆ {x|x is a person}
The first set is subset of second set because every woman or man is always be a person, and a person will either be a man or woman.
Therefore they are equal sets.
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 - 2.2 Subsets - Exercise Set 2.2 - Page 68: 28
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