0.999…
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[edit] Illustrations in base 10
 Explanation why "0.999..." equals "1" using number lines |
[edit] Illustrations in other bases
 Base 3: nested intervals |
 Base 3: 1/4, 2/3, and 1 in the Cantor set |
 Base 4: The decimal 0.333… = 1 |
 Base 4: The 4-adic number …333 = −1 |
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