Let U = {a1, a2, a3, ... , an, b1, b2, b3, ..., bm, C1, C2, C3, .. Cx} be a set roster of elements in universe U with subsets A, B, C and let R denote an equivalence relation with equivalence %3D classes [A] = Vn(an E A), [B] = Vm(bm E B), [C] = vk(ck € C). %3D %3D a) What would we expect to be true about [A] n [B] , [B]n [C], and [A] N [C]? b) Thinking about your response to the previous question, suppose it was found during an analysis of the elements of U that c; E A, for some i E N. Would [A] = [C] return True or return False? How do you know? ==
Let U = {a1, a2, a3, ... , an, b1, b2, b3, ..., bm, C1, C2, C3, .. Cx} be a set roster of elements in universe U with subsets A, B, C and let R denote an equivalence relation with equivalence %3D classes [A] = Vn(an E A), [B] = Vm(bm E B), [C] = vk(ck € C). %3D %3D a) What would we expect to be true about [A] n [B] , [B]n [C], and [A] N [C]? b) Thinking about your response to the previous question, suppose it was found during an analysis of the elements of U that c; E A, for some i E N. Would [A] = [C] return True or return False? How do you know? ==
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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