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Geometry (mander.xyz)
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[-] polonius-rex@kbin.run 79 points 1 year ago

the point isn't to prove that the triangle is a triangle it's to prove that the system of mathematics you made up actually works

[-] big_slap@lemmy.world 30 points 1 year ago

hey! get out of here with your math!!

[-] Iheartcheese@lemmy.world 16 points 1 year ago
[-] ChicoSuave@lemmy.world 3 points 1 year ago

Commie nerds

[-] idunnololz@lemmy.world 3 points 1 year ago

Help! He's logicing all over us!

[-] weker01@feddit.de 19 points 1 year ago

Until you prove that you can't prove that the system you made up works.

[-] kogasa@programming.dev 3 points 1 year ago

Nobody is practically concerned with the "incompleteness" aspect of Gödel's theorems. The unprovable statements are so pathological/contrived that it doesn't appear to suggest any practical statement might be unprovable. Consistency is obviously more important. Sufficiently weak systems may also not be limited by the incompleteness theorems, i.e. they can be proved both complete and consistent.

[-] bitfucker@programming.dev 3 points 1 year ago

Oh, what if the Riemann hypothesis is such a statement then? Or any other mathematical statement. We may not have any use for them now, but as with all things math, they are sometimes useful somewhere unexpected.

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[-] weker01@feddit.de 2 points 1 year ago

I think the statement "this system is consistent" is a practical statement that is unprovable in a sufficiently powerful consistent system.

Can you help me understand the tone of your text? To me it sounds kinda hostile as if what you said is some kind of gotcha.

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[-] fushuan@lemm.ee 5 points 1 year ago

You just reminded me of having to prove that math signs work and do what they do from basic axioms to integers and rational numbers using logical proofs... Damn that was interesting but SO tedious...

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[-] Ghyste@sh.itjust.works 31 points 1 year ago

You can tell it's a triangle because of the way it is.

[-] Cadeillac@lemmy.world 10 points 1 year ago
[-] Ghyste@sh.itjust.works 4 points 1 year ago
[-] Cadeillac@lemmy.world 3 points 1 year ago

You have no idea how much I need it friend. Now...can I pet that dawg??

[-] Ghyste@sh.itjust.works 2 points 1 year ago
[-] Cadeillac@lemmy.world 2 points 1 year ago

I feel that brother. Stay strong

[-] radicalautonomy@lemmy.world 3 points 1 year ago

That's pretty neat!

[-] pineapplelover@lemm.ee 1 points 1 year ago

Philomena Cunk proof right there

[-] ohwhatfollyisman@lemmy.world 23 points 1 year ago

that won't work for yoda, though. for him, there is no triangle. there's just doangle or donotangle.

[-] PunnyName@lemmy.world 22 points 1 year ago

I nearly failed geometry because I didn't understand what my instructor wanted from me.

[-] venoft@lemmy.world 17 points 1 year ago

Yes but what if one side is so slightly curved that it's invisible to the naked eye? Then your total angles would be 179.99 degrees and it's not a triangle.

[-] Zipitydew@sh.itjust.works 10 points 1 year ago

Non-Euclidian horrors beyond comprehension

[-] general_kitten@sopuli.xyz 3 points 1 year ago

Commonly known as reality

[-] Honytawk@lemmy.zip 4 points 1 year ago

But isn't a curve just many angles next to one another?

[-] Hule@lemmy.world 2 points 1 year ago

Yes, but infinitely many.

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[-] Brickardo@feddit.nl 16 points 1 year ago

Even philosophy 101 can give you a ton of reasons why looking at it just isn't enough

[-] Semjaza@lemmynsfw.com 7 points 1 year ago

Especially Philosophy 101

[-] Honytawk@lemmy.zip 3 points 1 year ago* (last edited 1 year ago)

How Can Triangles Be Real If Our Eyes Aren't Real?

[-] propter_hog@hexbear.net 16 points 1 year ago

"Just look at it". Visual proofs are not proofs. They're demonstrations. For a species that is so easily fooled by things we see, visualization cannot be taken as rigorous proof.

[-] Scubus@sh.itjust.works 7 points 1 year ago
[-] cicadagen@ani.social 2 points 1 year ago
[-] RecluseRamble@lemmy.dbzer0.com 5 points 1 year ago

... are visual and therefore no proof.

[-] Sonotsugipaa@lemmy.dbzer0.com 1 points 1 year ago

Optical illusions aren't real

[-] Klear@sh.itjust.works 1 points 1 year ago

Are birds optical illusions?

[-] Sonotsugipaa@lemmy.dbzer0.com 1 points 1 year ago

No, they're government drones

[-] sundray@lemmus.org 13 points 1 year ago

"If we can't prove these two triangles are similar while not being congruent, the world is doomed."

"Oh my god. We need a 10th grader with at least a B-average, stat!"

[-] Atelopus-zeteki@kbin.run 7 points 1 year ago

LoL, actual.

[-] Semi_Hemi_Demigod@lemmy.world 5 points 1 year ago

I loved geometry. It made algebra make sense. Plus I had a really awesome geometry teacher. He looked like Shel Silverstein and was super pumped every day to teach math.

[-] Cethin@lemmy.zip 3 points 1 year ago

I loved geometry. It's the class where I first got experience programming. I just sat in class programming stuff on my calculator not really paying attention. I did fine in the class luckily.

Totally unrelated, but I (30 yo) recently realized I'm almost certainly ADHD. There definitely weren't any identifiable signs before that people should have noticed...

[-] Sotuanduso@lemm.ee 4 points 1 year ago

In one of my last CS classes, we did proofs and would use "by observation" for this kind of thing.

[-] NutWrench@lemmy.world 2 points 1 year ago

Equilateral triangle. All three sides are equal length and it has three interior angles that add up to exactly 180 degrees.

[-] mayo_cider@hexbear.net 1 points 1 year ago* (last edited 1 year ago)

I don't believe in geometry

I'm 6'5

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this post was submitted on 17 Jul 2024
569 points (97.8% liked)

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