Prove that if A ∪ B = A is true, then A ∩ B = B is also true, AND CONVERSELY. Caution. There are two directions to prove
Prove that if A ∪ B = A is true, then A ∩ B = B is also true, AND CONVERSELY. Caution. There are two directions to prove
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter2: The Integers
Section2.1: Postulates For The Integers (optional)
Problem 31E: 31. Prove that if is positive and is negative, then is negative.
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Prove that if A ∪ B = A is true, then A ∩ B = B is also true, AND CONVERSELY.
Caution. There are two directions to prove
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