List questions from fake-proofs

Published on 11 Mar 2013 - 16:40

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Find the demonstration error for the statement "All positive integers are equal"

Published on 20 Mar 2013 - 2:13

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How Does This Argument Go Wrong?

Published on 23 Mar 2013 - 14:27

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A paradox related to computable reals?

Published on 24 Mar 2013 - 20:42

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All natural numbers are equal.

Published on 27 Mar 2013 - 1:17

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What's wrong in this equation?

Published on 27 Mar 2013 - 13:09

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Circular law from the semi-circle law

Published on 29 Mar 2026 - 7:28

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What's wrong with this simple counter-example for continuity of modulus function?

Published on 10 Aug 2020 - 21:01

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Evaluate $\lim _{n\to \infty }\int _{0}^{1}nx^ne^{x^2}dx$

Published on 12 Aug 2020 - 6:34

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Spivak's Calculus Chapter 3 Problem 25

Published on 12 Aug 2020 - 15:44

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Where does this proof that $1 = 2$ go wrong? (Expressing $x^2=\sum_{n=1}^xx$ and differentiating)

Published on 15 Aug 2020 - 3:04

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Where is the error in this "proof" that 3=0?

Published on 17 Aug 2020 - 6:55

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Circular reasoning in proving $\lim_{x\to a}(\sin x) = \sin a$

Published on 18 Aug 2020 - 14:31

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Logical Fallacy in the negation of P:(∃x∈ℝ)(∀y∈ℝ) x ≼ y ??

Published on 20 Aug 2020 - 0:50

61

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Why is this sequence of equalities wrong?

Published on 31 Aug 2020 - 17:18

List Question

Paradox - What is wrong with this proof that proves a false assertion?

Find the demonstration error for the statement "All positive integers are equal"

How Does This Argument Go Wrong?

A paradox related to computable reals?

All natural numbers are equal.

What's wrong in this equation?

Circular law from the semi-circle law

What's wrong with this simple counter-example for continuity of modulus function?

Evaluate $\lim _{n\to \infty }\int _{0}^{1}nx^ne^{x^2}dx$

Spivak's Calculus Chapter 3 Problem 25

Where does this proof that $1 = 2$ go wrong? (Expressing $x^2=\sum_{n=1}^xx$ and differentiating)

Where is the error in this "proof" that 3=0?

Circular reasoning in proving $\lim_{x\to a}(\sin x) = \sin a$

Logical Fallacy in the negation of P:(∃x∈ℝ)(∀y∈ℝ) x ≼ y ??

Why is this sequence of equalities wrong?

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