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 3.2 - Page 116: 17

Answer

$\exists$ an integer $d$, such that $6/d$ is an integer and $d \neq 3.$

Work Step by Step

Recall the form of the negation of a universal conditional statement: $~(\forall x, P(x) \rightarrow Q(x)) \equiv \exists x$ such that $(P(x) \land $ ~$Q(x))$. In this case P(x) is: 6/d is an integer. Q(x) is: d=3.
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