Thinking Mathematically (6th Edition)

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

Chapter 2 - Set Theory - 2.1 Basic Set Concepts - Exercise Set 2.1: 117

Answer

They are neither one-to-one correspondent nor equivalent.

Work Step by Step

From Exercises 113. and 114., we know that there are multiple values in the set of time that correspond to the same level of happiness. By definition, for 2 sets to have one-to-one correspondence, each element in one set must correspond to exactly one element in the other. Since these sets aren't one-to-one correspondent, they aren't equivalent either.
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