Answer
See the answer below.
Work Step by Step
First, the converse is:
If $m^3 − m$ is divisible by 3, then $ m$ is odd.
The counterexample is $m=2$; then $m^3 − m=6$ is divisible by $3$ and $2$ is not odd.
Calculus (3rd Edition)
by Rogawski, Jon; Adams, Colin
Published by
W. H. Freeman
ISBN 10:
1464125260
ISBN 13:
978-1-46412-526-3
Appendix A - The Language of Mathematics - Exercises - Page A6: 18
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