Consider the following topology T on the set X = {a, b, c, d, e}: T =
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Consider the following topology T on the set X = {a, b, c, d, e}:
T = {{a}, {b, c, d}, {e}, {a, b, c, d, e}, ?}
Determine if T is a topology on X. If it is a topology, prove it. If it is not a topology, provide a counterexample. (5 marks)
Find the closure of the set A = {b, c} with respect to T. (5 marks)
Is X a compact space with respect to T? If it is compact, prove it. If it is not compact, provide an open cover of X that has no finite subcover. (10 marks)
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