Answer
The argument is invalid.
Work Step by Step
. The argument’s conclusion is
is a natural number.
This conclusion is not supported by possible Euler diagram. It means, the argument is invalid.
Hence, the provided argument is invalid.
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
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 204: 27
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