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9 hours later…
1:25 PM
This question is a duplicate of this one.
 
 
2 hours later…
3:32 PM
@RRL @XanderHenderson @JoséCarlosSantos @YuiToCheng: This post is implicitly using a nonsensical definition of exponentiation, which doesn't even obey the LaTeX syntax!!
 
4:00 PM
 
4:10 PM
D1, D2, D3.
D4, D5, D6.
D7, D8, D9.
 
 
4 hours later…
7:45 PM
2
Q: Is the interior of the closure of the interior of the closure of a set equal to the interior of the closure of that set?

A-B-iziLet $S$ be a subset of a topological space. I want to prove or disprove the following claim: $\left(\overline{\left( \overline{S} \right)^\circ}\right)^\circ=\left( \overline{S} \right)^\circ$ Setting $A=\left( \overline{S} \right)^\circ$, we have: $A=\left( \overline{A} \right)^\circ$. I kno...

the two answers here deleted recently should be UDd
math.stackexchange.com/questions/118046/… these too look like valid answers
at least the Yanior Weg one
the other seems to be duplicated in a non-deleted answer
 
 
3 hours later…
RRL
11:07 PM
For deletion: DA, DB, DC, DD, DE, DF, DG, DH
 
RRL
11:18 PM
For deletion: DI, DJ, DK, DL, DM, DN, DO
For deletion: DP
 

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