Thinking Mathematically (6th Edition)

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

Chapter 3 - Logic - 3.8 Arguments and Euler Diagrams - Exercise Set 3.8 - Page 203: 26

Answer

valid

Work Step by Step

All natural numbers are whole numbers, and all whole numbers are integers, thus all natural numbers are integers. Thus since some natural numbers are even, some integers are even, thus the argument is valid.
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