Discrete Mathematics with Applications 4th Edition

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

Chapter 3 - The Logic of Quantified Statements - Exercise Set 3.4 - Page 143: 23

Answer

Valid. The major and minor premises are diagrammed. The only possible composition of the premises is diagrammed. If the premises are true, then the conclusion must also be true, and so the argument is valid.

Work Step by Step

According to the diagram, the set of teachers and the set of gods can have no common elements. There is no way for the conclusion to be false given the true premises.
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