Question
10. Given the set A = {a, b, c, d}. Describe the indicated closure for each of the following binary relations over A. a. r(R),
10. Given the set A = {a, b, c, d}. Describe the indicated closure for each of the following binary relations over A.
a. r(R), where R = {(a, d)}.
b. s(R), where R = {(a, b), (c, d)}.
c. t(R), where R = {(a, b), (d, a), (d, c), (c, b)}.
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Building The Data Warehouse
Authors: W. H. Inmon
4th Edition
0764599445, 978-0764599446
