Let (M, d) be a metric space and let AC= M. Prove that the boundary of...
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Let (M, d) be a metric space and let AC= M. Prove that the boundary of A is given by the intersection of the closure of A with the closure of A^c. Let (M, d) be a metric space and let AC= M. Prove that the boundary of A is given by the intersection of the closure of A with the closure of A^c.
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