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MathNet 2010 — Part 03 Question 121

Math Olympiad Vault · MathNet 2010 — Part 03

Question 121

Do there exist two functions $f, g: \mathbb{R} \to \mathbb{R}$ such that for all $x \neq y$ the following inequality holds?
$$
|f(x) - f(y)| + |g(x) - g(y)| \gt 1
$$