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/sci/ - Science & Math


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File: 407 KB, 843x461, dedekincut.png [View same] [iqdb] [saucenao] [google]
12480779 No.12480779 [Reply] [Original]

>even normie pop sci YT channels are skeptical of the "real numbers"
infinists schizos BTFO'd again

https://www.youtube.com/watch?v=KTUVdXI2vng

>> No.12480787

based

>> No.12480824

do people acc believe that dedekin cuts are a valid construction ?

>> No.12480831

PRAISE OUR LORD WILDBERGER

>> No.12480849

infinistists need to take their meds

>> No.12480851

>even normie pop sci YT channels are skeptical of the "real numbers"
All the more reason to believe in them

>> No.12480854
File: 89 KB, 666x1024, goawayreals.jpg [View same] [iqdb] [saucenao] [google]
12480854

GO AWAY REALS

>> No.12480894
File: 298 KB, 1078x1073, 1600551534039.jpg [View same] [iqdb] [saucenao] [google]
12480894

>>12480779
kek we win again finitist bros! Nobody can stop us.

>> No.12480900

>>12480894
ah yes ! another daily victory against these schizos fellow finist

>> No.12480902

She is so hot

>> No.12480915

>>12480779
id fuck her in her dedekin cut if you catch my drift........

>> No.12480917

>>12480779
being a retard -> implies i'm correct

xd?

>> No.12480978

I like it how she doesn't even bother trying to explain how the arithmetic works out with diddykind cuts

>> No.12480982

>>12480978
based and finitepilled

>> No.12480990
File: 664 KB, 1421x957, uncomputable.png [View same] [iqdb] [saucenao] [google]
12480990

>> No.12481009

>>12480779
whats her name ? she cute af

>> No.12481117

>>12480915
what did he mean by this?

>> No.12481130

>>12480915
based coomer

>> No.12481156

>>12480915
>her

>> No.12481885

>>12480854
Go away reals

>> No.12481927

>>12480854
GO AWAY REALS

>> No.12482073

>>12480854
GO AWAY REALS

>> No.12482084

>>12481156
Just fuck off trannylover

>> No.12482094

>>12480854
GO AWAY REALS

>> No.12482098

There is no crisis at all.

>> No.12482107

>>12480779
>what is a cauchy completion???

>> No.12482133

>>12482107
A definition that doesnt work.

>> No.12482164

>>12480779
>White people bad

Wow, what an informative video.

>> No.12482297
File: 165 KB, 1920x1080, (((sqrt(2)))).jpg [View same] [iqdb] [saucenao] [google]
12482297

>>12480779
>dedekind cuts
Also, the """definition""" she gives for sqrt(2), even assuming the delusion of """infinite sets""", is wrong. The lower cut needs to be {q | q^2 < 2 or q < 0} and the upper cut needs to be {q | q^2 > 2 and q > 0}. She ignores the q < 0/q > 0 conditions, so negative numbers like -5 are in her upper cut, not her lower cut (pic related).
>>12480978
This is probably why she didn't try to do arithmetic with it lmao. The absolute state of """real number""" theorists. Additionally, Wildberger is once again vindicated, because she only gave the basic babby example of sqrt(2) since it requires checking 2 conditions, which is why basically every analysis textbook uses this """definition.""" If you want to define pi, good luck checking an infinite number of conditions lmao.

>she actually says "math is built out of simpler math"
>proceeds to define integers with """infinite sets""" corresponding to an equivalence class of pairs of natural numbers
She literally assumes the existence of an actual infinity to get her definition of the integers and claims that somehow simpler than the natural numbers lmao. And yes, I know by simpler, she means "more fundamental", but that doesn't make it any less delusional.

The only good thing about this video is that she admitted the a(>>>/x/)iom of infinity is pure cope that mathematicians would like to believe so they just assumed it was true.

>> No.12482310

>>12480854
but he rejects axioms

>> No.12482341

>>12480824
Well, tookie thinks.

>> No.12482460
File: 1.12 MB, 320x289, thefuck.gif [View same] [iqdb] [saucenao] [google]
12482460

>>12480779
>that obvious voice cut to correct the name of Ernst Snapper
>Newton's principia image instead of Russell's

How did she pronounce "Gödel"? at 8:51???
Gurdel?

What is this amateur garbage?

>> No.12482773

>>12480779
Yes, there is no infinity, but there are numbers that doesn't fit into our universe.