Timeline for set theory forcing
Current License: CC BY-SA 3.0
20 events
| when toggle format | what | by | license | comment | |
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| Jun 25, 2013 at 12:16 | review | First posts | |||
| Jun 26, 2013 at 10:01 | |||||
| Jun 25, 2013 at 12:13 | history | reopened |
Joel David Hamkins Timothy Chow Asaf Karagila♦ Daniel Moskovich François G. Dorais |
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| Jun 25, 2013 at 3:02 | review | Reopen votes | |||
| Jun 25, 2013 at 12:13 | |||||
| Jun 24, 2013 at 7:03 | comment | added | Asaf Karagila♦ | Miguel, I too feel that this sort of question is a good fit for MO. However as with all other exercises which appear on this site, the level of the question must be above average. It should reflect the fact that you put quite an effort into the question before coming here. In either case I have voted to reopen this question. | |
| Jun 24, 2013 at 2:07 | comment | added | Joel David Hamkins | Well, Miguel, despite the closure of your question, I'd like to welcome you to MathOverflow. I'm truly very sorry to see a newcomer get such a rough reception. I know that this could be discouraging, but I'd like to encourage you not to become discouraged. Please try to look past it and simply try again with other questions! Indeed, you seem to be studying forcing, and I'd particularly encourage questions on forcing, which is definitely on-topic here at MO. You may find that you will get a more favorable reception with a more carefully worded question or fuller explanation. | |
| Jun 24, 2013 at 1:26 | history | closed |
Andrés E. Caicedo Steven Landsburg Henry Cohn Simon Thomas Nik Weaver |
too localized | |
| Jun 23, 2013 at 23:32 | comment | added | Andreas Blass | Joel's editing has produced a reasonable question, which might or might not be what the OP intended. | |
| Jun 23, 2013 at 22:47 | comment | added | Andrés E. Caicedo | I think part of the question was also whether the assumption on the size of I or CH were necessary. | |
| Jun 23, 2013 at 21:28 | comment | added | Mariano Suárez-Álvarez | (Any further discussion should probably happen in a meta thread) | |
| Jun 23, 2013 at 21:24 | history | edited | Joel David Hamkins | CC BY-SA 3.0 |
edited body
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| Jun 23, 2013 at 21:16 | comment | added | Joel David Hamkins | François, I have edited. | |
| Jun 23, 2013 at 21:16 | history | edited | Joel David Hamkins | CC BY-SA 3.0 |
added 97 characters in body; edited tags; edited body
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| Jun 23, 2013 at 21:00 | comment | added | François G. Dorais | I tend to side with Joel. I think the appropriate reaction is to edit the question. (This is not done enough on MO!) | |
| Jun 23, 2013 at 20:46 | comment | added | Joel David Hamkins | Andres, what isn't clear? He wants to know if every function $f:\omega\to\omega$ added by the forcing $Fn(I,2)$ when $\omega_2\leq|I|$ does not dominate some ground model $g:\omega\to\omega$. Clearly the English could be improved, but the mathematical question seems clear. In my opinion, the downvotes and votes to close are not appropriate. | |
| Jun 23, 2013 at 20:39 | answer | added | Stefan Geschke | timeline score: 5 | |
| Jun 23, 2013 at 20:36 | comment | added | Andrés E. Caicedo | No Joel, the question is not clear. There is in fact no question, and the sentences are hard to parse. We can sort of see what a possible question could perhaps be, given what is written, but that is a different story. | |
| Jun 23, 2013 at 20:32 | comment | added | Stefan Geschke | I believe you are asking why Cohen forcing doesn't add dominating reals. A proof of this fact can in the Bartoszynski-Judah book "Set theory of the real line". | |
| Jun 23, 2013 at 20:28 | comment | added | Joel David Hamkins | The question is completely clear. This is a graduate-level question about forcing, using completely standard notation and terminology. It seems fine for MO. | |
| Jun 23, 2013 at 20:23 | comment | added | Mariano Suárez-Álvarez | Your question uses unexplained notation, mentions an exercise in a book but does not tell us what excercise nor what book, and it is quite not clear what you are trying to ask. | |
| Jun 23, 2013 at 20:11 | history | asked | Miguel | CC BY-SA 3.0 |