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  3. 134 given that proposition 134 let xd be a metric...

Question: 134 given that proposition 134 let xd be a metric...

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1.3.4 Given that: Proposition 1.3.4. Let (X,d) be a metric space, let Y be a subset of X, and let E be a subset of Y Prove (b) E is relatively closed with respect to Y if and only if E or some set K C X which is closed in X

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