Answer
A ⊂ B, sets A and B are not equal.
Work Step by Step
Set A is a proper subset of set B, expressed as A ⊂ B.
It means that set A is a subset of set B and sets A and B are not equal.
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 - Concept and Vocabulary Check - Page 67: 2
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