Let X = {1, 2, 3, 4, 5, 6} and let T1 = {X, , {3}, {1,2,3}, {2,3,4}, {2}} and T2 = {X, þ, {2}, {1,2,3}, {4,5,6}, {2,4,5,6}} T1 is not a topology and T2 is a topology on O T1 and T2 are both topologies on X O T1 and T2 are both not topologies on T1 is a topology on X and T2 is not a topology on X
Let X = {1, 2, 3, 4, 5, 6} and let T1 = {X, , {3}, {1,2,3}, {2,3,4}, {2}} and T2 = {X, þ, {2}, {1,2,3}, {4,5,6}, {2,4,5,6}} T1 is not a topology and T2 is a topology on O T1 and T2 are both topologies on X O T1 and T2 are both not topologies on T1 is a topology on X and T2 is not a topology on X
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.7: Relations
Problem 1E: For determine which of the following relations onare mappings from
to, and justify your answer.
...
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