List questions from fake-proofs

Published on 19 Dec 2012 - 16:52

272

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Can someone please explain to me how I did this summation formula wrong?

Published on 24 Dec 2012 - 19:58

3.9k

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"Too simple to be true"

Published on 27 Dec 2012 - 10:58

369

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What is wrong with my 'proof'?

Published on 27 Dec 2012 - 23:24

301

Views

Is $ \log_a x^n = n \log_a x? $

Published on 04 Jan 2013 - 3:59

435

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$\lim\limits_{n \rightarrow \infty} \int_X n \log \left( 1 + \frac{|f(x)|^2}{n} \right) \,dm(x) = \int_X |f(x)|^2 \,dm(x)$

Published on 06 Jan 2013 - 18:27

4.4k

Views

What is wrong with this fake proof $e^i = 1$?

Published on 18 Jan 2013 - 17:46

328

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proof that $0 = \infty$

Published on 19 Jan 2013 - 3:02

235

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What is wrong with my proof?

Published on 25 Jan 2013 - 22:11

519

Views

$\int_{-\infty}^{\infty} \frac{\sin(x)}{x} dx $ with integration by parts?

Published on 28 Jan 2013 - 5:59

9.8k

Views

Funny thing. Multiplying both the sides by 0?

Published on 28 Jan 2013 - 14:46

410

Views

Funny Proof of $2=1$

Published on 15 Feb 2013 - 6:59

79

Views

Is this simple proof about symmetric sums correct?

Published on 17 Feb 2013 - 17:21

137

Views

Countability of the continuum

Published on 20 Feb 2013 - 10:06

2.7k

Views

Problem with the Pythagorean theorem

Published on 08 Mar 2013 - 22:21

List Question

Where is the flaw that led to the fallacy that $x^4 + y^4 = z^4$?

Can someone please explain to me how I did this summation formula wrong?

"Too simple to be true"

What is wrong with my 'proof'?

Is $ \log_a x^n = n \log_a x? $

$\lim\limits_{n \rightarrow \infty} \int_X n \log \left( 1 + \frac{|f(x)|^2}{n} \right) \,dm(x) = \int_X |f(x)|^2 \,dm(x)$

What is wrong with this fake proof $e^i = 1$?

proof that $0 = \infty$

What is wrong with my proof?

$\int_{-\infty}^{\infty} \frac{\sin(x)}{x} dx $ with integration by parts?

Funny thing. Multiplying both the sides by 0?

Funny Proof of $2=1$

Is this simple proof about symmetric sums correct?

Countability of the continuum

Problem with the Pythagorean theorem

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