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Proposition: Closed n-Dimensional Cuboids Are Compact
Let a_\nu,b_\nu\in\mathbb R be real numbers with a_\nu \le b_\nu for \nu=1,\ldots,n. The closed n-dimensional cuboid Q:=\{(x_1,\ldots,x_n)\in\mathbb R^n:\quad a_\nu \le x_\nu \le b_\nu\}
is a compact subset of the n-dimensional metric space of real numbers \mathbb R^n.
Table of Contents
Proofs: 1 Corollaries: 1
Mentioned in:
Proofs: 1 2
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References
Bibliography
- Forster Otto: "Analysis 2, Differentialrechnung im \mathbb R^n, Gewöhnliche Differentialgleichungen", Vieweg Studium, 1984