Form equivalence class Howard-Rubin Number: 52
Statement: Sandwich Theorem for Real Valued Functions:For every real vector space \(X\), if\(e: X\to {\Bbb R}\) is a concave function, \(g: X\to {\Bbb R}\) is a convexfunction, and \(e\le g\) everywhere on \(X\), then there exists an affinefunction \(f: X \to {\Bbb R}\) satisfying \(e \le f \le g\) everywhere on\(X\). Schechter [1996b] and Note 31.
Howard-Rubin number: 52 K
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