List questions from fake-proofs

Published on 21 Mar 2026 - 19:23

8.2k

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The "assumption" in proof by induction

Published on 22 Mar 2026 - 6:54

148

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I can't spot the mistake. What's happening?

Published on 22 Mar 2026 - 16:36

148

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Paradoxical result from the chain rule

Published on 25 Mar 2026 - 1:21

219

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Does $(x^m)^n$ not always equal $x^{mn}$?

Published on 22 Mar 2026 - 16:54

129

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Is this rough intuition for Brouwer's fixed point theorem in $\mathbb R^2$ correct?

Published on 28 Apr 2018 - 10:30

93

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Why the wrong result?

Published on 21 Mar 2026 - 16:11

116

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How can one trust geometric proofs if humans are susceptible to optical illusions?

Published on 10 May 2018 - 6:20

76

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Contradiction in Proof

Published on 21 Mar 2026 - 19:30

89

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Misunderstanding Caley-Hamilton Theorem - Characteristic Polynomial in the Standard/Factorized Form

Published on 17 May 2018 - 2:35

110

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All positive integers $n$ are equal

Published on 22 Mar 2026 - 2:48

761

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Bogus Proof by Strong Induction

Published on 22 Mar 2026 - 7:30

893

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Find all $x$ such that $4^{27}+4^{1000}+4^{x}$ is a perfect square.

Published on 22 Mar 2026 - 10:46

268

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Is this considered a disproof of $1+2+3+4\ldots=-\frac{1}{12}$?

Published on 05 Jun 2018 - 5:31

284

Views

Topology of almost everywhere convergence - What's wrong with my construction?

Published on 16 Jun 2018 - 18:35

List Question

¿Where does equality fail?

The "assumption" in proof by induction

I can't spot the mistake. What's happening?

Paradoxical result from the chain rule

Does $(x^m)^n$ not always equal $x^{mn}$?

Is this rough intuition for Brouwer's fixed point theorem in $\mathbb R^2$ correct?

Why the wrong result?

How can one trust geometric proofs if humans are susceptible to optical illusions?

Contradiction in Proof

Misunderstanding Caley-Hamilton Theorem - Characteristic Polynomial in the Standard/Factorized Form

All positive integers $n$ are equal

Bogus Proof by Strong Induction

Find all $x$ such that $4^{27}+4^{1000}+4^{x}$ is a perfect square.

Is this considered a disproof of $1+2+3+4\ldots=-\frac{1}{12}$?

Topology of almost everywhere convergence - What's wrong with my construction?

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