List questions from alternative-proof

Published on 29 Mar 2026 - 3:27

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Difference of two greatest integer functions

Published on 22 Feb 2024 - 8:49

48

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Prove stochastic group $\sum (2,\mathbb{F}_4) \approx A_4$

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40

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Easy to understand proof of Self-similar IFS fractal dimension

Published on 29 Mar 2026 - 22:31

54

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Alternative way of showing $A \subset B$.

Published on 29 Feb 2024 - 16:54

210

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Solving $p\sin^{4}{\theta}-q\sin^{4}{\phi}=p$ and $p\cos^{4}{\theta}-q\cos^{4}{\phi}=q$ for $\theta$ and $\phi$

Published on 04 Mar 2024 - 7:59

103

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Elementary proof that $\sin$ is the unique function for which $y'' = -y$ with $y(0) = 0$ and $y'(0)=1$

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96

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Spherical volumes via revolution of polynomials

Published on 26 Mar 2026 - 11:17

63

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On the equality of sum of areas of "sector-like" regions

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36

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Prove that if X is a subspace and Y is a subspace, then X+Y is a subspace.

Published on 09 Mar 2024 - 20:22

51

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Prove that the inverse of the inverse of a matrix A is equal to A

Published on 09 Mar 2024 - 23:26

84

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Explaining an argument of Ahlfors without the use of differentials

Published on 11 Mar 2024 - 16:33

62

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Using combinational group theoretical perspective on semidirect products, show $\langle r,s\mid r^8, s^2, srs=r^3\rangle$ has two Klein four subgroups

Published on 26 Mar 2026 - 16:56

36

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Exercise 12, Section 4.1 of Hungerford’s Algebra

Published on 29 Mar 2026 - 3:53

55

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Simple way to show that standard basis on $\ell^p$ is weakly pre-compact?

Published on 26 Mar 2026 - 14:43

List Question

Theorem 11, Section 4.5 of Hungerford's Algebra

Difference of two greatest integer functions

Prove stochastic group $\sum (2,\mathbb{F}_4) \approx A_4$

Easy to understand proof of Self-similar IFS fractal dimension

Alternative way of showing $A \subset B$.

Solving $p\sin^{4}{\theta}-q\sin^{4}{\phi}=p$ and $p\cos^{4}{\theta}-q\cos^{4}{\phi}=q$ for $\theta$ and $\phi$

Elementary proof that $\sin$ is the unique function for which $y'' = -y$ with $y(0) = 0$ and $y'(0)=1$

Spherical volumes via revolution of polynomials

On the equality of sum of areas of "sector-like" regions

Prove that if X is a subspace and Y is a subspace, then X+Y is a subspace.

Prove that the inverse of the inverse of a matrix A is equal to A

Explaining an argument of Ahlfors without the use of differentials

Using combinational group theoretical perspective on semidirect products, show $\langle r,s\mid r^8, s^2, srs=r^3\rangle$ has two Klein four subgroups

Exercise 12, Section 4.1 of Hungerford’s Algebra

Simple way to show that standard basis on $\ell^p$ is weakly pre-compact?

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