Timeline for Do there exist at least two sets whose union gives the universe in a certain intersection-closed family of sets?
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 19 at 21:00 | vote | accept | Fabius Wiesner | ||
| Jul 19 at 20:56 | comment | added | Fabius Wiesner | Thank you. I formulated the problem for an intersection-closed family because the question is related to this other question and your answer here can be used to build an example as asked by that question. | |
| Jul 19 at 19:46 | comment | added | LSpice | It's probably easier to see this by thinking complementarily, as your language suggests implicitly and your comment suggests explicitly. | |
| Jul 19 at 19:18 | history | answered | Will Sawin | CC BY-SA 4.0 |