List questions from fake-proofs

Published on 27 Sep 2021 - 13:15

612

Views

Please can someone tell accurately and precisely the actual fallacies of this fake proof that 0.999... ≠ 1.000...?

Published on 28 Sep 2021 - 21:23

128

Views

There exists non Borel-measurable set in $[0,1]$

Published on 18 Oct 2021 - 19:24

118

Views

Why is this proof wrong? $2^i = \frac{\sqrt{2}}{2}$

Published on 03 Nov 2021 - 12:41

188

Views

Erroneous Proof that the Derivative is Continuous

Published on 04 Nov 2021 - 20:49

109

Views

In a topological group all loops based at 1 are homotopic

Published on 19 Nov 2021 - 12:28

35

Views

Question on non-continuous derivative

Published on 20 Nov 2021 - 13:05

123

Views

Detect Wrong Proof by strong induction $a^{n-1}=1$ for all $n$

Published on 25 Nov 2021 - 17:23

52

Views

Limits of $ f(x,y) = y\ (1-x)^{y-2} $ reach contradiction

Published on 26 Nov 2021 - 0:34

204

Views

Question about the limit $\displaystyle\lim_{n\rightarrow \infty}\sqrt[n]{3^n+ 2^n}$

Published on 01 Dec 2021 - 19:41

54

Views

Trouble identifying error in fake-proof.

Published on 02 Dec 2021 - 10:57

160

Views

Fake proof for a sequence convergence to a limit

Published on 07 Dec 2021 - 16:53

214

Views

Exercise $6.5$ of Baby Rudin

Published on 17 Dec 2021 - 10:21

175

Views

Fake proof that $0=1$ using $\int\frac{1}{x\ln x}\,\mathrm{d}x$ and integration by parts

Published on 24 Dec 2021 - 17:09

412

Views

Where am I wrong that I can prove every subgroup is normal?

Published on 25 Dec 2021 - 19:32

List Question

Is this proof true for 0! = 1

Please can someone tell accurately and precisely the actual fallacies of this fake proof that 0.999... ≠ 1.000...?

There exists non Borel-measurable set in $[0,1]$

Why is this proof wrong? $2^i = \frac{\sqrt{2}}{2}$

Erroneous Proof that the Derivative is Continuous

In a topological group all loops based at 1 are homotopic

Question on non-continuous derivative

Detect Wrong Proof by strong induction $a^{n-1}=1$ for all $n$

Limits of $ f(x,y) = y\ (1-x)^{y-2} $ reach contradiction

Question about the limit $\displaystyle\lim_{n\rightarrow \infty}\sqrt[n]{3^n+ 2^n}$

Trouble identifying error in fake-proof.

Fake proof for a sequence convergence to a limit

Exercise $6.5$ of Baby Rudin

Fake proof that $0=1$ using $\int\frac{1}{x\ln x}\,\mathrm{d}x$ and integration by parts

Where am I wrong that I can prove every subgroup is normal?

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