Timeline for Does the exact pair phenomenon for partial orders occur in your area of mathematics?
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| Apr 23, 2010 at 3:25 | comment | added | Joel David Hamkins | Thanks for the example, Jacques. I think that one could make many similar examples. What I am looking for ideally are examples akin to the Turing degrees, that is, large intensely studied hierarchies that have the properrty that every increasing sequence admits an exact pair. | |
| Apr 23, 2010 at 2:54 | history | answered | Jacques Carette | CC BY-SA 2.5 |