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 1.4 - Predicates and Quantifiers - Exercises - Page 54: 24

Answer

a) 1.$ \forall xC (x)$ 2.$\forall x(D(x) \rightarrow C (x))$ D(x) in your class C(x) has a cellular phone b) 1. $\exists x F (x)$ 2. $\exists x(D(x) \land F (x))$ D(x) in your class F(x) seen a foreign movie c)1. $\exists x \neg S(x)$ 2.$\exists x (D(x) \land \neg S(x))$ D(x) in your class S(x) cant swim d) 1.$\forall xQ(x)$ 2. $\forall x(D(x)\rightarrow Q(x))$ D(x) in your class Q(x) solve equation e)1.$\exists x \neg R(x)$ 2.$\exists x (D(x) \land \neg R(x))$ D(x) in your class R(x) want to be rich

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