Let M be a finite-dimensional subspace of the normed space X. If x + Me X/M, show that there exists an element y = x + M such that ||y|| = ||x + M||.
Let M be a finite-dimensional subspace of the normed space X. If x + Me X/M, show that there exists an element y = x + M such that ||y|| = ||x + M||.
Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter4: Vector Spaces
Section4.CR: Review Exercises
Problem 73CR
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