Saturday, November 12, 2016

geometry - Length of diagonal compared to the limit of lengths of stair-shaped curves converging to it

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I see this post and I am stunned. I think this is fallacious but I can't figure where is the fallacy?




If you know the fallacy. Please post a answer.

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analysis - Injection, making bijection

I have injection $f \colon A \rightarrow B$ and I want to get bijection. Can I just resting codomain to $f(A)$? I know that every function i...