Timeline for name for "solid" subset of a partially ordered set?
Current License: CC BY-SA 2.5
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 9, 2009 at 1:04 | comment | added | Mikael Vejdemo-Johansson | Right, and Stanley requires for the interval that a ≤ b, which isn't stated explicitly in the question. | |
| Dec 8, 2009 at 0:16 | comment | added | David Eppstein | Every interval is convex, but not every convex set is an interval. For instance, an antichain in a poset is convex, but unless it has only one element it is not an interval. | |
| Dec 7, 2009 at 22:07 | history | answered | Mikael Vejdemo-Johansson | CC BY-SA 2.5 |