Discrete Mathematics with Applications 4th Edition

Published by Cengage Learning
ISBN 10: 0-49539-132-8
ISBN 13: 978-0-49539-132-6

Chapter 4 - Elementary Number Theory and Methods of Proof - Exercise Set 4.3 - Page 178: 18

Answer

False.

Work Step by Step

Consider the integers 7 and 5. 3 divides their sum, 12, but does not divide their difference 2. Therefore, this statement is false.
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