Top network posts

• 36 How to show that quotient space $X/Y$ is complete when $X$ is Banach space, and $Y$ is a closed subspace of $X$?
• 23 Did ancient Chinese frontline troops decapitate themselves to scare their foes?
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• 22 Is kidney theft happening in real life?
• 11 Is the cardinality of uncountable $G_{\delta}$ set of $\mathbb{R}$ equals the cardinality of the continuum?
• 11 Why continuum function isn't strictly increasing?
• 11 Why the nontrivial nullspace of a linear has codimension 1?
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