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| bio | website | |
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| location | ||
| age | ||
| visits | member for | 1 year, 6 months |
| seen | Jan 18 at 16:59 | |
| stats | profile views | 9 |
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May 18 |
awarded | Nice Question |
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Jan 18 |
awarded | Supporter |
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Jan 18 |
comment |
About 0.999… = 1 (Thank you for your valid answer. I accepted the other one because of the comment thread following it) |
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Jan 18 |
accepted | About 0.999… = 1 |
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Jan 18 |
comment |
About 0.999… = 1 Ok, thank you for the explanation. |
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Jan 18 |
comment |
About 0.999… = 1 We're interested in something like $(1-r)(1+r+r^2+\dots r^N)=1-r^N$. Which property (of ordered fields?) is being transferred? (it would be an occasion for me to understand what this transfer principle is about, in an elementary instance like this) |
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Jan 18 |
comment |
About 0.999… = 1 But why the formula $\sum_{i=1}^N r^i=(1-r^N)/(1-r)$, for $r$ real, is still valid when $N$ is infinite? (btw, yes I think "infinite" is the technical term used in nostandard analysis) |
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Jan 18 |
asked | About 0.999… = 1 |
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Mar 16 |
awarded | Scholar |
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Mar 16 |
accepted | Complex elliptic curve for the “conjugate” lattice |
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Mar 16 |
awarded | Student |
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Mar 16 |
awarded | Editor |
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Mar 16 |
revised |
Complex elliptic curve for the “conjugate” lattice edited body |
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Mar 16 |
asked | Complex elliptic curve for the “conjugate” lattice |
