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Proposition: Compact Subset of Real Numbers Contains its Maximum and its Minimum
Let A be a non-empty compact subset of a the real numbers \mathbb R. Then \max(A)\in A,~\min(A)\in A, where \max(A) and \min(A) denote the maximum and minimum of A, respectively.
Table of Contents
Proofs: 1
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Proofs: 1
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References
Bibliography
- Forster Otto: "Analysis 2, Differentialrechnung im \mathbb R^n, Gewöhnliche Differentialgleichungen", Vieweg Studium, 1984