Timeline for Dense linear span implies closed convex hull has non-empty interior
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 9, 2020 at 15:33 | review | Close votes | |||
| Jun 17, 2020 at 12:25 | |||||
| Jun 9, 2020 at 15:19 | vote | accept | ABIM | ||
| Jun 9, 2020 at 15:17 | comment | added | Andreas Blass | What happens if $X=\ell^2$ and $Y$ consists of the vectors $2^ne_n$, where the $e_n$ are an orthonormal basis for $X$? It seems to me that, if there are counterexamples, they'd look something like this. (Iosif's answer, which appeared as I was typing mine, indicates that I got it backward; $2^{-n}$ instead of $2^n$.) | |
| Jun 9, 2020 at 15:16 | answer | added | Iosif Pinelis | timeline score: 3 | |
| Jun 9, 2020 at 15:15 | history | edited | YCor | CC BY-SA 4.0 |
formatting, changed tags
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| Jun 9, 2020 at 14:46 | history | asked | ABIM | CC BY-SA 4.0 |