Timeline for Is there any characterization for lifting clopen subsets
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 6, 2018 at 13:43 | history | edited | Ben McKay | CC BY-SA 4.0 |
spelling, grammar, formatting
|
| Jul 6, 2018 at 11:53 | comment | added | Henno Brandsma | When $Y$ is clopen in $X$, there is no lifting required as $C \subset Y$ clopen in $Y$ then implies $C$ is clopen in $X$ too. If $Y$ is disconnected and $X$ is not, we cannot lift any clopens but $\emptyset$ and $Y$. | |
| Jul 6, 2018 at 11:27 | history | edited | E.R | CC BY-SA 4.0 |
added 65 characters in body
|
| Jul 6, 2018 at 7:38 | history | edited | Neil Strickland |
Removed the algebraic topology tag, which is not relevant here
|
|
| Jul 6, 2018 at 3:01 | history | asked | E.R | CC BY-SA 4.0 |