Timeline for Automorphisms of locally finite countable posets-2
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 29, 2011 at 17:21 | comment | added | user16974 | I appologize for not being clear. My intention is $A \subset \bigcup_{x \in C} {\rm Past}(x) \cup \bigcup_{x \in C} {\rm Future}(x)$. | |
| Sep 29, 2011 at 15:48 | comment | added | Emil Jeřábek | David, while the OP’s terminology is not quite clear, I think you are a bit overdoing it. Poset and maximal chain are standard terms. It seems that the intended reading of 1 is $A\subseteq\bigcup_{x\in C}\mathrm{Past}(x)$ and $A\subseteq\bigcup_{x\in C}\mathrm{Future}(x)$. | |
| Sep 29, 2011 at 15:30 | comment | added | Colin Reid | Judging by previous questions, I think the OP is feeling around for axioms that will ensure a reasonably tame automorphism group. My suggestion would be to change 1. to 'every finite set lies in an interval' or something like that. | |
| Sep 29, 2011 at 15:18 | history | answered | David | CC BY-SA 3.0 |