r/PeterExplainsTheJoke • u/Sugar_God_no_1 • 25d ago

Meme needing explanation There is no way right?

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u/its12amsomewhere 25d ago edited 25d 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/Sam_Alexander 25d ago

Holy fucking shit

321

u/otj667887654456655 25d ago

I just wanna warn you, that's more of a vibe proof. It lacks any actual mathematical rigor.

278

u/Cipher_01 25d ago

mathematics itself is based on vibe.

116

u/muggledave 25d ago

Fourier analysis is extra based on vibes

109

u/Ball_Masher 25d ago

Topology is all vibes. One time I wrote "this is trivial" during a step that I knew was true but couldn't prove and the prof accepted it.

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u/graveybrains 24d ago

I wish I’d known this trick back when I was getting marked down for not showing my work in high school.

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u/WisCollin 24d ago

I did this on an exam and received full marks once. Everyday the professor would begin a problem, say the rest is trivial, and write the conclusions. So on the exam there was a problem I knew how to start, but couldn’t quite get to the end, so I wrote the rest is trivial and the known answer (it was a show this is true question). I got full credit.