Timeline for Is there an identity between the associative identity and the constant identity?
Current License: CC BY-SA 4.0
12 events
when toggle format | what | by | license | comment | |
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Nov 23 at 7:55 | comment | added | Pietro Majer | (I would add -I and -II to the titles) | |
Jul 18, 2023 at 20:45 | vote | accept | user107952 | ||
Jul 18, 2023 at 16:35 | answer | added | Terry Tao | timeline score: 22 | |
Jul 18, 2023 at 12:36 | answer | added | Pace Nielsen | timeline score: 7 | |
Jul 18, 2023 at 10:50 | comment | added | YCor | Out of curiosity, is there a real motivation at looking specifically at varieties of magmas that are generated by a single identity? | |
Jul 17, 2023 at 19:15 | comment | added | YCor | But this is not a very exciting one. Better ask whether there is something between associativity and constancy of triple products? | |
Jul 17, 2023 at 19:08 | comment | added | user107952 | @YCor Then you should state the identity as an answer. | |
Jul 17, 2023 at 19:02 | comment | added | YCor | Just take the semigroup $\{a,b,c\}$ with $aa=b$ and all other products equal to $c$. | |
Jul 17, 2023 at 19:00 | comment | added | user107952 | @YCor But is your identity strictly weaker than the constant identity? Isn't it equivalent to it? | |
Jul 17, 2023 at 15:48 | comment | added | YCor | Oh, it's a single one: $a+(b+c)=(d+e)+f$. | |
Jul 17, 2023 at 15:36 | comment | added | YCor | Already there's an obvious pair of identity in between (the one saying that all triple products are the same). | |
Jul 17, 2023 at 14:25 | history | asked | user107952 | CC BY-SA 4.0 |