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: 20

Answer

{F,I,N} ⊂ {F,I,N,K}

Work Step by Step

As all the elements of the first set are present in the second set but the number of elements are lesser in the first set then the second set. Therefore first set is proper subset of second set. {F,I,N} ⊂ {F,I,N,K}
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