Timeline for How do finite door spaces work?
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
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| Oct 11, 2021 at 14:41 | comment | added | Tim Campion | @AsafKaragila The interdimensional beings agree with the topologists -- real fake doors are where it's at. Why would you want a real real door where it's always open or closed? | |
| Oct 11, 2021 at 14:32 | comment | added | Asaf Karagila♦ | Like this, obviously. | |
| Oct 11, 2021 at 12:57 | history | edited | Tim Campion | CC BY-SA 4.0 |
added 3 characters in body
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| Oct 11, 2021 at 3:48 | history | edited | Wlod AA | CC BY-SA 4.0 |
a correction
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| Oct 9, 2021 at 10:24 | comment | added | Wlod AA | Door spaces and their generalization were studied in a paper by W.H. and A.Mishchenko, published in the Bulletin of Polish Academy of Science, around y.1964. | |
| Oct 9, 2021 at 5:35 | history | became hot network question | |||
| Oct 9, 2021 at 2:42 | vote | accept | Tim Campion | ||
| Oct 8, 2021 at 22:10 | answer | added | Richard Stanley | timeline score: 19 | |
| Oct 8, 2021 at 21:46 | comment | added | Noah Schweber | For question 1 are you counting door topologies up to equality or homeomorphism? | |
| Oct 8, 2021 at 21:43 | comment | added | Wojowu | For Q0: consider topology on $\{0,1,2\}$ with opens $\varnothing,\{0\},\{0,1\},\{0,1,2\}$. Here $\{0,2\}$ is neither open nor closed. | |
| Oct 8, 2021 at 21:35 | history | asked | Tim Campion | CC BY-SA 4.0 |