Timeline for Order types of positive reals
Current License: CC BY-SA 2.5
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 18, 2010 at 14:17 | comment | added | Kiochi | I thought the "standard" method is to use 1-1 maps from the countable ordinals into $\omega$. A tree constructed in this way can't have an uncountable chain lest we map $\omega_1$ 1-1 into $\omega$. | |
| May 18, 2010 at 8:47 | history | answered | Andrew Marks | CC BY-SA 2.5 |