Timeline for Let $a_1, \dots, a_n$ be a finite set of positive reals. Is there a $\mathbb Q$-basis of $\mathbb R$ where each $a_i$ has nonnegative coordinates?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
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| Mar 10 at 15:21 | history | edited | GH from MO | CC BY-SA 4.0 |
edited for language
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| Mar 10 at 15:16 | history | edited | GH from MO | CC BY-SA 4.0 |
added 3 characters in body
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| Mar 10 at 12:01 | history | edited | Fedor Petrov | CC BY-SA 4.0 |
deleted 236 characters in body
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| Mar 10 at 9:49 | history | edited | Fedor Petrov | CC BY-SA 4.0 |
added 172 characters in body
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| Mar 10 at 9:43 | comment | added | Fedor Petrov | Ah, yes, let me fix this | |
| Mar 10 at 8:37 | comment | added | Gro-Tsen | By $X$ you mean the $\mathbb{Q}$-linear span of $a_1,\ldots,a_n$, right? The notation suggests the subring they generate. | |
| Mar 10 at 5:44 | history | answered | Fedor Petrov | CC BY-SA 4.0 |