Exercise 6.53. Let K be a closed and bounded subset of an open set U in R". Prove that there exists an r> 0 such that B, (a) C U for all a € K, by applying each of the following compactness results: (i) the Bolzano-Weierstrass theorem. (ii) the Heine-Borel theorem.
Exercise 6.53. Let K be a closed and bounded subset of an open set U in R". Prove that there exists an r> 0 such that B, (a) C U for all a € K, by applying each of the following compactness results: (i) the Bolzano-Weierstrass theorem. (ii) the Heine-Borel theorem.
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.1: Inner Product Spaces
Problem 16EQ
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