List questions from fake-proofs

Published on 27 Mar 2026 - 19:10

135

Views

Counter example regarding bounded functions.

Published on 02 Jan 2021 - 10:51

558

Views

Proof about Weierstrass Theorem and limits.

Published on 02 Jan 2021 - 13:48

73

Views

Fake proof that $\cot^4 x = -\tan^4 x$

Published on 02 Jan 2021 - 17:05

86

Views

Proving that $f=x\cdot g(x)$ is differentiable at $0$ if and only if $\lim_{x\to0}g(x)$ exists.

Published on 03 Jan 2021 - 18:50

112

Views

Function is not continuous as a multivariable function but continuous as a single variable one

Published on 04 Jan 2021 - 23:11

465

Views

Proof regarding the limit of arctanx.

Published on 05 Jan 2021 - 17:20

95

Views

Fake proof that $\sqrt{i} = 1$

Published on 06 Jan 2021 - 17:28

221

Views

Is $P(1)$ true?

Published on 07 Jan 2021 - 23:10

81

Views

What is wrong with this proof that x = |x|

Published on 08 Jan 2021 - 1:07

69

Views

"Proof" that every ultrafilter has a least element

Published on 25 Mar 2026 - 17:24

62

Views

Fake proof: 2=4 using nested exponents

Published on 11 Jan 2021 - 18:16

143

Views

Pseudo-Cauchy Sequences are bounded help.

Published on 17 Jan 2021 - 18:29

160

Views

Integration by parts question: why does the constant of integration get swallowed up?

Published on 17 Jan 2021 - 23:37

63

Views

How can you know you are performing a legal operation?

Published on 18 Jan 2021 - 19:47

List Question

Proving $(AB)^T=B^TA^T$: Can you find the flaw in the reasoning?

Counter example regarding bounded functions.

Proof about Weierstrass Theorem and limits.

Fake proof that $\cot^4 x = -\tan^4 x$

Proving that $f=x\cdot g(x)$ is differentiable at $0$ if and only if $\lim_{x\to0}g(x)$ exists.

Function is not continuous as a multivariable function but continuous as a single variable one

Proof regarding the limit of arctanx.

Fake proof that $\sqrt{i} = 1$

Is $P(1)$ true?

What is wrong with this proof that x = |x|

"Proof" that every ultrafilter has a least element

Fake proof: 2=4 using nested exponents

Pseudo-Cauchy Sequences are bounded help.

Integration by parts question: why does the constant of integration get swallowed up?

How can you know you are performing a legal operation?

Trending Questions

Popular # Hahtags

Popular Questions