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23-05-2023
Mathematics

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Consider the sets X = 4 and Y = {4}. (a) True or False: X = Y .
(b) True or False: X ⊆ Y (c) True or False: X ∈ Y . (d) True or
False: X ∈ {4, r}. (e) True or False: Y ∈ {4, r}.

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