(a) Consider the following topology of X = {a,b, c, d, e}: T = {X, 0, {a}, {c, d}, {a, c, d}, {b, c, d, e}}. What are the components of X? (b) Show that every component E of X is closed.

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.2: Mappings
Problem 22E
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A component E of a topological space X is a maximal connected subset of X.
Clearly, E + 0, E is connected, and E is not a proper subset of any other connected
subset of X.
(a) Consider the following topology of X = {a, b, c, d, e}:
T = {X,Ø, {a}, {c, d}, {a, c, d}, {b, c, d, e}}.
What are the components of X?
(b) Show that every component E of X is closed.
Transcribed Image Text:A component E of a topological space X is a maximal connected subset of X. Clearly, E + 0, E is connected, and E is not a proper subset of any other connected subset of X. (a) Consider the following topology of X = {a, b, c, d, e}: T = {X,Ø, {a}, {c, d}, {a, c, d}, {b, c, d, e}}. What are the components of X? (b) Show that every component E of X is closed.
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