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28. Let R be a collection of sets defined by R = {x | x ¢ x}. %3D (a) Show R is not the empty set. (b) Is R an element of itself?

28. Let R be a collection of sets defined by R = {x | x ¢ x}. %3D (a) Show R is not the empty set. (b) Is R an element of itself?

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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28. Let R be a collection of sets defined by R = {x | x ¢ x}. %3| (a) Show R is not the empty set. (b) Is R an element of itself?
Transcribed Image Text:28. Let R be a collection of sets defined by R = {x | x ¢ x}. %3| (a) Show R is not the empty set. (b) Is R an element of itself?
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