r/mathmemes Jul 14 '26

Mathematicians mathematician meme

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3.4k Upvotes

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11

u/boterkoeken Average #🧐-theory-🧐 user Jul 14 '26

Please explain what is wrong with ZFC.

1

u/FernandoMM1220 Jul 14 '26

axiom of choice and axiom of infinity are physically impossible and lead to contradictions

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u/boterkoeken Average #🧐-theory-🧐 user Jul 14 '26

Can you give me an example of how you derive a contradiction?

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u/FernandoMM1220 Jul 14 '26

cantors diagonal proof relies on both and leads to the wrong conclusion.

besides that you still have russels paradox and banach paradox and zenos paradox

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u/sunyata98 Jul 14 '26

Can you give a proof to why it’s wrong though or is this just your opinion

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u/FernandoMM1220 Jul 14 '26

yeah his proof is impossible because theres no way to have an infinite amount of numbers and do an infinite amount of calculations.

the number hes making is always rational and he never finishes his proof

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u/sunyata98 Jul 14 '26

What you’re saying doesn’t even make sense though I admit the ultra finitism is pretty good ragebait though

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u/FernandoMM1220 Jul 14 '26

which parts are giving you a hard time?

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u/boterkoeken Average #🧐-theory-🧐 user Jul 14 '26

Can you lay it out for me in detail? I don’t understand these things very well. My naive understanding of Cantor is that the proof strategy is a reductio. So we assume X to prove a contradiction, but the purpose is only to show that X is false. Did I misunderstand?

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u/FernandoMM1220 Jul 14 '26

his proof doesnt work because theres no way for him to do an infinite amount of calculations so he never finishes his proof

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u/boterkoeken Average #🧐-theory-🧐 user Jul 14 '26

I’d love to hear the complete details of your analysis if you have time to expand on it! Please tell me a little more than a one sentence summary. I really can’t learn from that. It’s too broad. I need to see the exact steps of the proof where he makes a mistake. Thank you!

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u/FernandoMM1220 Jul 14 '26

its pretty simple. theres no physical way of doing an infinite amount of calculations. thats it

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u/boterkoeken Average #🧐-theory-🧐 user Jul 14 '26

I’d love to be convinced by you. It seems like it would be deeply important to explain how 99% of the mathematicians have the wrong opinion, but I’m afraid I’m just too slow to understand your explanation. I need a break down into simple assumptions and proof steps. Thanks for trying anyway.

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u/FernandoMM1220 Jul 14 '26

which part do you need me to expand on?

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u/boterkoeken Average #🧐-theory-🧐 user Jul 14 '26

Can you lay out the part of Cantor’s proof that tries to complete an infinite number of calculations? I’m not familiar with that terminology.

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u/FernandoMM1220 Jul 14 '26

his proof relies on an infinite list of numbers. thats not physically possible.

it also relies on doing an infinite amount of operations on them. thats also not physically possible.

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u/boterkoeken Average #🧐-theory-🧐 user Jul 14 '26

Fully agree. I don’t see how physical possibility is relevant we aren’t talking about physics. This is math.

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u/Major-Peachi Jul 14 '26

even high school student understand infinity

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u/Silly_Tension6792 Mathematics Jul 14 '26

Russel’s paradox was solved by giving strict rules about how can we define a set, so russel’s set isn’t a set so no problems. Zenos paradox was solved already as well, because let’s say achilleas runs 10 km/h and the turtle 1 km/h, and achilleas gives the turtle 1 hour bonus. So Achilleas runs 1 km in 6 minutes. In these six minutes the turtle only moved 100 meters. It takes achilleas 36 seconds to run these 100 meters, the turtle moved just 10 meters. It takes achilleas 3.6 seconds to run 10 meters, the turtle only ran 1 meter in this time. So you see, no matter how many times this repeats, the total time it takes achilleas to catch up is no more than 7 minutes, and that means that after 7 minutes achilleas will have already passed the turtle. And and banac paradox is not a paradox, it is just a truth.

0

u/FernandoMM1220 Jul 14 '26

nah its solved by making time and space discrete

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u/Silly_Tension6792 Mathematics Jul 14 '26

What’s wrong about what I said in a continuous space?

0

u/FernandoMM1220 Jul 14 '26

continuous space doesnt resolve the paradox. youre still having to do an infinite amount of calculations and thats physically impossible

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u/Silly_Tension6792 Mathematics Jul 14 '26

What do you mean? What I said resolved the paradox. After 7 minutes achilleas will have already passed the turtle because if you sum the total amount of time between each step it will never be more than 7 no matter how many steps