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: 1

Answer

{1,2,5} ∈ (1,2,3,4,5,6,7}

Work Step by Step

As all the elements of 1st set is present in 2nd set. Therefore {1,2,5} ∈ (1,2,3,4,5,6,7}
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