Answer
True
Work Step by Step
Assume that R is symmetric for all x, y $\in$ and assume (y,x) $\in$ $R^-1$
which means that if xRy is true then yRx is also true
since yRx true and xRy is true we could say that $R^-1$ is symmetric
Discrete Mathematics with Applications 4th Edition
by Epp, Susanna S.
Published by
Cengage Learning
ISBN 10:
0-49539-132-8
ISBN 13:
978-0-49539-132-6
Chapter 8 - Relations - Exercise Set 8.2 - Page 459: 35
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