What's the property used in the inequality $ \sup\{x+y | x \in X, y \in Y \} \leq \sup \{ x | x \in X\} + \sup\{y | y \in Y \}$? I know it's about Triangle inequality, but I don't know for the exact name of the property.
2026-04-09 00:50:32.1775695832
What's the property does the inequality about supremum use?
126 Views Asked by Bumbble Comm https://math.techqa.club/user/bumbble-comm/detail AtRelated Questions in INEQUALITY
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