• UnderpantsWeevil@lemmy.world
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    6 个月前

    Even simpler

    0.99999999… = 1

    But you’re just restating the premise here. You haven’t proven the two are equal.

    1/3 =0.333333…

    This step

    1/3 + 1/3 + 1/3 = 0.99999999…

    And this step

    Aren’t well-defined. You’re relying on division short-hand rather than a real proof.