0.999...= 1 - Hackdot

Re:0.999...= 1 by gspr on Tuesday April 28, 2020 @03:29PM (#23010829)

You're asking them to perform subtraction. They probably know how to do that with real numbers, but problably not with much else. So they'll have to know that they're real numbers (or whatever numbers you are demanding that they be – you're still unclear on this point if it's not actually the reals).

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Re:0.999...= 1 by brlewis on Tuesday April 28, 2020 @03:59PM (#23011179)

Internally I'm saying they're real numbers. In what I say to the person trying to intuit that 0.999... = 1, I'm deliberately avoiding talking about number systems. I'm assuming this person thinks of numbers as sequences of digits, possibly with a decimal point.

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Re:0.999...= 1 by gspr on Tuesday April 28, 2020 @05:32PM (#23012355)

And that is where it all goes wrong.

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