Discrete Mathematics and Its Applications, Seventh Edition

Published by McGraw-Hill Education
ISBN 10: 0073383090
ISBN 13: 978-0-07338-309-5

Chapter 1 - Section 1.8 - Proof Methods and Strategy - Review Questions - Page 111: 3

Answer

As given below

Work Step by Step

a) $p \rightarrow q$: If $p$, then $q$ Some different ways to write the conditional statement: "$q$ only if $p$" "If $p,q$" "$q$ when there is $p$" "$p$ implies $q$" "$q$ follows $p$" b) Converse of $p \rightarrow q$: The conditional statement $q \rightarrow p $ "If $q$, then $p$" Contrapositive of $p \rightarrow q$: The conditional statement $\neg q \rightarrow \neg p $ "If not $q$, then not $p$" c) We are given: “If it is sunny tomorrow, then I will go for a walk in the woods" so $p=$ "If it is sunny tomorrow" $q=$ "I will go for a walk in the woods" The converse of the conditional statement, "If I go for a walk in the woods, then it is sunny tomorrow" The contrapositive of the conditional statement, "If I do not go for a walk in the woods, then it is not sunny tomorrow"
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