Timeline for Can the symmetric groups on sets of different cardinalities be isomorphic?
Current License: CC BY-SA 2.5
10 events
| when toggle format | what | by | license | comment | |
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| Feb 11, 2010 at 1:45 | vote | accept | Joel David Hamkins | ||
| Jan 25, 2010 at 23:30 | comment | added | Joel David Hamkins | Thanks for the great answer! But it seems a funny way to me to make the list, for it is redundant in several ways. First, item (i) is included in the first part of item (iii) in the case beta=omega as S_{<omega}. Also, the second part of item (iii) is a special case of the first part, since S_{\leq\beta}(X)=S_{<\beta+}(X). So I think you can omit item (i) and the second part of (iii) completely, and have the same subgroups. (Also, you have a typo, since \kappa should be \beta.) | |
| Jan 25, 2010 at 20:33 | history | edited | Mariano Suárez-Álvarez | CC BY-SA 2.5 |
added 15 characters in body
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| Jan 25, 2010 at 17:06 | history | edited | Mariano Suárez-Álvarez | CC BY-SA 2.5 |
added 44 characters in body
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| Jan 25, 2010 at 16:57 | history | edited | Pete L. Clark | CC BY-SA 2.5 |
added 12 characters in body
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| Jan 25, 2010 at 16:56 | history | rollback | Pete L. Clark |
Rollback to Revision 2
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| Jan 25, 2010 at 16:52 | history | edited | Pete L. Clark | CC BY-SA 2.5 |
deleted 29 characters in body
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| Jan 25, 2010 at 16:45 | history | edited | Mariano Suárez-Álvarez | CC BY-SA 2.5 |
added 44 characters in body
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| Jan 25, 2010 at 16:43 | history | edited | Pete L. Clark | CC BY-SA 2.5 |
corrected spelling, improved formatting
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| Jan 25, 2010 at 16:40 | history | answered | Mariano Suárez-Álvarez | CC BY-SA 2.5 |