Question:
Let X₁ be a closed subspace and X₂ be a finite dimensional
Last updated: 8/7/2022
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Let X₁ be a closed subspace and X₂ be a finite dimensional subspace of a normed space X. Then X₁ + X₂ is closed in X. Let X be a normed space such that U(0,1) is totally bounded. Then X is finite dimensional.