Thinking Mathematically (6th Edition)

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

Chapter 3 - Logic - 3.6 Negations of Conditional Statements and De Morgan's Law - Exercise Set 3.6 - Page 179: 64


Does not make sense

Work Step by Step

Does not make sense, different truth tables belong to e.g $p\land q$ and $\sim p \land \sim q$. (E.g. if p and q re true, the first one is true, the latter one is false.
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