Math Problem Statement

Soit (xn) et (yn) deux suites réelles bornées. Montrer que : | sup xn − sup yn|  sup |xn − yn|

Solution

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Math Problem Analysis

Mathematical Concepts

Real Analysis
Sequences
Supremum

Formulas

| sup x_n − sup y_n | ≤ sup |x_n − y_n|

Theorems

Supremum Inequality

Suitable Grade Level

Undergraduate (University Level)