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12:41 AM
Mar 30 '15 at 10:19, by Martin Sleziak
With all the discussions about lack of context, way to provide context, etc., should we have tag on meta?
Do you think creating the tag (on meta) could help with searching past discussion about this topic?
 
 
13 hours later…
1:54 PM
0
Q: best approximation, reflexiv normed space

Cornman Let $E$ be a reflexive normed space and let $\emptyset\neq K\subseteq E$ closed and convex. Show that then exists for every $x\in E$ a "best approximation" in $K$. Therefore a $y\in K$ with $\|x-y\|=d(x,K):=\inf\{\|x-z\|\colon z\in K\}$ Is additionaly $(E,\|\cdot\|)$ uniformly convex, the...

 
 
8 hours later…
11:11 PM
@MartinSleziak I do not really know, but I guess users asking for these questions most have their question closed. So the "closing-reasons" might be good enough? (But since you used to manage lots of meta posts by retagging/editing, so might be you are the best to make a call).
 

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