Timeline for Proving $\sum_{k=m}^n \binom{k}{m} {n\brack k} = \sum_{k=m}^n \frac{n!}{k!} {k\brack m} $
Current License: CC BY-SA 4.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 12, 2023 at 6:46 | history | edited | Alexander Burstein | CC BY-SA 4.0 |
added 155 characters in body
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| Dec 12, 2023 at 6:31 | history | answered | Alexander Burstein | CC BY-SA 4.0 |