Answer
$\text{true}$
Work Step by Step
Substituting in the values: $\sim(\text{false}\leftrightarrow\text{false})=\sim\text{false}=\text{true}$
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 3 - Logic - Chapter Summary, Review, and Test - Review Exercises - Page 207: 28
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