Timeline for Existence of trees with height $\omega$, size $\aleph_1$ and $\aleph_2$ maximal branches
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 7, 2023 at 15:51 | comment | added | Joseph Van Name | For each $a\in T$, choose a branch $x_a\in X$ with $a\in x_a$. Then $\{x_a:a\in A\}$ is our dense set of size $\aleph_1$. | |
| Dec 7, 2023 at 15:19 | comment | added | George Marangelis | How can we see that $dc(X) = \aleph_1$? | |
| Dec 6, 2023 at 11:48 | history | answered | Joseph Van Name | CC BY-SA 4.0 |