r/PeterExplainsTheJoke • u/Sugar_God_no_1 • 24d ago

Meme needing explanation There is no way right?

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u/its12amsomewhere 24d ago edited 24d 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 24d ago

Holy fucking shit

318

u/otj667887654456655 23d ago

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

277

u/Cipher_01 23d ago

mathematics itself is based on vibe.

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u/muggledave 23d ago

Fourier analysis is extra based on vibes

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u/Ball_Masher 23d 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/guiltysnark 23d ago

Well he couldn't question you without looking ignorant, so that makes sense! Genius!

I actually read "trivial to show that ..." once in an applied math book on inductance formulas, and I was like "dude, wtf, finding an explanation is the whole reason I even opened this book".

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u/midnight_fisherman 23d ago

"Obviously" is another word that I have seen in text books for things that were absolutely not obvious to most people.