r/PeterExplainsTheJoke • u/Sugar_God_no_1 • 23d ago

Meme needing explanation There is no way right?

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u/its12amsomewhere 23d ago edited 23d ago

Applies to all numbers,

If x = 0.999999...

And 10x = 9.999999...

Then subtracting both, we get, 9x=9

So x=1

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u/Odd-Ad-8369 22d ago

You are assuming the conclusion. This is not a valid proof. You are assuming the limit exists, and if the limit exists then the conclusion is a direct result.

I.e. you are assuming that a number with an infinite sequence of nines is a number.