Thinking Mathematically (6th Edition)

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

Chapter 2 - Set Theory - Chapter Summary, Review, and Test - Review Exercises - Page 109: 27


The given statement is "{3,7,9} ⊆ {9,7,3,1}" False.

Work Step by Step

{3,7,9} ⊆ {9,7,3,1} From the given question, the element of the first are present in the second set and they have different number of elements, So first set is a proper subset of the second set. ({3,7,9} ⊂ {9,7,3,1}) The given statement is "{3,7,9} ⊆ {9,7,3,1}" False.
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