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comment error in a proof - basic general topology
Consider $X\subset R^n$. If a connected $C\subset R^n$ contains a point $a\in X$ and a point $b\notin X$ then $C$ must contain a point in the boundery of $X$.
Sep
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answered How to solve for x if it is on the top of the fraction?
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answered Does $\lim_{x\to 0}\sqrt{x}$ exist?
Sep
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revised error in a proof - basic general topology
Only typos.
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answered error in a proof - basic general topology
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suggested approved edit on error in a proof - basic general topology
Sep
24
accepted Spacelike curves definitions