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In: Advanced Math

In the proof of bolzano-weierstrass theorem in R^n on page 56 of "Mathematical Analysis" by Apostol,...

In the proof of bolzano-weierstrass theorem in R^n on page 56 of "Mathematical Analysis" by Apostol, should the inequality be a/2^(m-2) < r/sqrt(n) or something related to n? a/2^(m-2) < r/2 seems not enough

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