List questions from fake-proofs

Published on 29 Oct 2014 - 21:45

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Prove $-(-a) = a$

Published on 02 Nov 2014 - 14:20

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What is wrong with this induction proof?

Published on 03 Nov 2014 - 4:43

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Why is this $0 = 1$ proof wrong?

Published on 03 Nov 2014 - 21:22

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Question on series $\frac {\Gamma'(z)}{\Gamma(z)}$

Published on 05 Nov 2014 - 11:35

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Derivative of conditional expectation

Published on 07 Nov 2014 - 4:00

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"Proof" that $0=1$ using an integral.

Published on 12 Nov 2014 - 19:21

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what are the problems with the followings "equations"?

Published on 16 Nov 2014 - 11:20

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$1^x = 1^y$ and $x,y$ belongs to Real Numbers.

Published on 18 Nov 2014 - 7:36

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For $f(\theta)= e^{\theta}$. Is it true that $\hat{f}(n)(1-in)=0$ for all $n\in \mathbb Z.$?

Published on 20 Nov 2014 - 15:34

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Question from Stewart's Calculus regarding proof of independence of path and conservative vector fields.

Published on 21 Nov 2014 - 1:16

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What is the error in this fake-proof of the complex number i?

Published on 28 Nov 2014 - 22:00

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how to point out errors in proof by induction

Published on 06 Dec 2014 - 16:45

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Can someone point out the flaw in my proof of AC?

Published on 08 Dec 2014 - 20:50

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What did I do here? This can't be right... ($i = -1$)?

Published on 15 Dec 2014 - 23:45

List Question

What is wrong with the following "proof" that $e=1$?

Prove $-(-a) = a$

What is wrong with this induction proof?

Why is this $0 = 1$ proof wrong?

Question on series $\frac {\Gamma'(z)}{\Gamma(z)}$

Derivative of conditional expectation

"Proof" that $0=1$ using an integral.

what are the problems with the followings "equations"?

$1^x = 1^y$ and $x,y$ belongs to Real Numbers.

For $f(\theta)= e^{\theta}$. Is it true that $\hat{f}(n)(1-in)=0$ for all $n\in \mathbb Z.$?

Question from Stewart's Calculus regarding proof of independence of path and conservative vector fields.

What is the error in this fake-proof of the complex number i?

how to point out errors in proof by induction

Can someone point out the flaw in my proof of AC?

What did I do here? This can't be right... ($i = -1$)?

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