Answer
∀x ∀y ∀ z((x·y) ·z = x · (y · z))
Work Step by Step
we have to use quantifiers to express the associative law for multiplication of real numbers.
so
∀x ∀y ∀ z((x·y) ·z = x · (y · z))
Discrete Mathematics and Its Applications, Seventh Edition
by Rosen, Kenneth
Published by
McGraw-Hill Education
ISBN 10:
0073383090
ISBN 13:
978-0-07338-309-5
Chapter 1 - Section 1.5 - Nested Quantifiers - Exercises - Page 68: 41
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