Math901 @MathMath901

∀x ∈ ℝ, (eˣ)' = eˣ Earth Joined January 2022

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Math901 @MathMath901

4 hours ago

Euclid's Fifth Postulate shows that mathematical truth depends on the axiomatic framework. It is true in Euclidean geometry, false in spherical geometry, and different again in hyperbolic geometry. The mathematics is consistent in each case; only the underlying axioms change.

𝒊ℏ𝜕ᵗ∣𝜓⟩＝𝛨̂∣𝜓⟩ @al5awarzme

5 hours ago

@MathMath901 And there is only one truth

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Math901 @MathMath901

3 hours ago

@MateoElQueSabe u need to prove (geometrically) the the only alpha=20° not just by saying that "ergo" doesn't work automatically,.

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Math901 @MathMath901

6 hours ago

#math problem 10-06-2026 Geometry puzzle.🤖

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Math901 @MathMath901

7 hours ago

#math problem 10-06-2026 Arithmetic:Percentage reasoning.🚗🚓🏎️

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Math901 @MathMath901

5 hours ago

It depends on your philosophy of mathematics: Platonism, Aristotelianism, Formalism, or Intuitionism.

SpringerMath @SpringerMath

14 hours ago

Is mathematics invented or discovered?

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Math901 @MathMath901

4 hours ago

@al5awarzme That's fair. Euclidean geometry can be viewed as a special case. I was only using it to illustrate that a statement's truth can depend on the framework and assumptions being used.

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Math901 @MathMath901

4 hours ago

@al5awarzme I agree in some sense. Math likely starts from abstracting patterns in reality, but whether it's invented or discovered is still the core philosophical debate.

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Math901 @MathMath901

4 hours ago

@al5awarzme That's actually what I was getting at. Euclidean geometry may fit inside spherical geometry in some sense, but the Fifth Postulate is still true in one and false in the other. The framework matters.

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Math901 @MathMath901

4 hours ago

@MateoElQueSabe Your answer is correct but Ur deduction i don't understand it.

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Math901 @MathMath901

4 hours ago

@al5awarzme Different philosophies of mathematics often agree on which theorems have been proved, but they do not necessarily agree on what it means for those theorems to be true.

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Math901 @MathMath901

5 hours ago

My first poem.

Math901 @MathMath901

7 hours ago

#poems

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Math901 @MathMath901

5 hours ago

@SpringerMath It depends on your philosophy of mathematics: Platonism, Aristotelianism, Formalism, or Intuitionism.

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Math901 @MathMath901

5 hours ago

@xavgrandjacquot Nice, wonder if we can deduce that without calculus.

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Math901 @MathMath901

5 hours ago

@Esolitario3 No creo. por ejemplo si B consume 100, entonces A consume 100 + 50 =150 entonces C consume 75 (150 - 75 )

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Math901 @MathMath901

6 hours ago

@Esolitario3 por que?

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@

a day ago

This C program compiles and runs exactly as shown. No characters may be added, removed, or modified. Your challenge: 1.Make a modern GCC compile it. 2.Make it run correctly. Explain every compiler option, macro expansion, and language rule that makes it possible.