Timeline for Are surjections $[n]\to [k]$ more common than injections $[k]\to [n]$?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 11, 2019 at 15:30 | comment | added | Olivier | "it is also clear that distinct injections go to distinct surjections". This seems false to me (in fact, clearly so). Take $k=1$ to see the problem. | |
| Jul 4, 2017 at 4:31 | review | Low quality posts | |||
| Jul 4, 2017 at 6:47 | |||||
| Jul 3, 2017 at 7:59 | comment | added | Fedor Petrov | the probability of being surjective should exceed the probability of being injective | |
| Jul 3, 2017 at 7:52 | history | answered | Nicholas Kuhn | CC BY-SA 3.0 |