Answer
A) False
B) True
Work Step by Step
A) We know that P and its opposite cannot both be true. Thus, the statement P and not P must be false.
B) P or its opposite must be true. Thus, we know that P or not P must result in a true statement.
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter P - Preliminary Concepts - Chapter P Test - Page 30: 16
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