Timeline for What do named "tricks" share?
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| Apr 2 at 19:32 | history | made wiki | Post Made Community Wiki by Stefan Kohl♦ | ||
| Feb 11, 2022 at 13:38 | history | edited | Martin Sleziak | CC BY-SA 4.0 |
http -> https (the question was bumped anyway)
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| Dec 6, 2010 at 5:31 | comment | added | Peter LeFanu Lumsdaine | Well, it’s only unnecessary if you’re assuming AC (which was not, if I understand right, quite as entrenchedly automatic among set theorists back in the ’60s as it is now). It’s necessary if you want to talk about cardinalities — and more generally, construct quotients of classes by equivalence relations — in ZF and many other set theories. | |
| Dec 4, 2010 at 16:10 | comment | added | Thierry Zell | Same for the Rabinowitsch trick. Also as pointed in another answer, the Rabinowitsch trick works only once (although similar ideas must be used, albeit in less famous circumstances). | |
| Dec 4, 2010 at 14:48 | history | edited | Joseph O'Rourke | CC BY-SA 2.5 |
Tried to fix broken URL
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| Dec 4, 2010 at 4:43 | history | answered | Lamont C | CC BY-SA 2.5 |