Thinking Mathematically (6th Edition)

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

Chapter 3 - Logic - 3.2 Compound Statements and Connectives - Exercise Set 3.2 - Page 133: 71

Answer

See below.

Work Step by Step

Adding the brackets: $\sim r\rightarrow(\sim p \lor \sim q)$. This means that not $r$ implies not $p$ or not $q$, thus a statement is: If we do not go to the beach, then the temperature is not above 85 degrees or we have not finished studying.
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