s a proper subset of U . (HINT: you can just show that AUB±U)

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.7: Relations
Problem 11E: Let be a relation defined on the set of all integers by if and only if sum of and is odd. Decide...
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Let A and B be subsets of some universal set U. Prove that if A is a proper subset of B, then AUB
is a proper subset of U . (HINT: you can just show that AUB +U)
Transcribed Image Text:Let A and B be subsets of some universal set U. Prove that if A is a proper subset of B, then AUB is a proper subset of U . (HINT: you can just show that AUB +U)
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