18
Dec
2020
Question of the Day
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Comments0
Prove $f(x)$ is constant if $|f(x)-f(y)| < (x-y)^2$ for all real $x$ and $y$.
My Journal
Maths Grinds
Prove $f(x)$ is constant if $|f(x)-f(y)| < (x-y)^2$ for all real $x$ and $y$.