Timeline for Who was/were the first to note that if $\sum_{x \in X} \frac{1}{x} < \infty$ then the natural density of $X$ is zero?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Feb 10, 2016 at 11:45 | history | edited | Salvo Tringali | CC BY-SA 3.0 |
Improved the exposition
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| Jul 9, 2015 at 20:47 | answer | added | Igor Rivin | timeline score: 11 | |
| Jul 9, 2015 at 19:36 | history | edited | Salvo Tringali |
Fixed and added tags
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| Jul 9, 2015 at 19:34 | comment | added | Salvo Tringali | For the record, the question was first motivated by mathoverflow.net/questions/211177, but is hopefully interesting per se. | |
| Jul 9, 2015 at 19:17 | history | edited | Salvo Tringali | CC BY-SA 3.0 |
Fixed grammar
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| Jul 9, 2015 at 19:06 | history | asked | Salvo Tringali | CC BY-SA 3.0 |