List questions from alternative-proof

Published on 14 Apr 2026 - 0:19

52

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$\frac{u_n}{1+u^2_n} \longrightarrow \frac{u}{1+u^2}\quad \text{ strongly in }L^1(\mathbb R).$

Published on 14 Apr 2026 - 22:54

300

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Power of a point parabola theorem

Published on 12 Apr 2026 - 7:41

2.1k

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Graph $G$ with different weights on edges has unique minimum spanning tree

Published on 11 May 2026 - 0:11

328

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prove: if a real number $a=\lim_{n\to \infty} a_n > c > 0$, then eventually $a_n > c$

Published on 10 May 2026 - 19:58

499

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Nested summation - intuition

Published on 10 Apr 2026 - 22:20

929

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Proof verification - Cauchy completeness of $\mathbb{R}$

Published on 10 Apr 2026 - 6:13

303

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Proof that If Two Homogeneous System in two unknowns has the same solutions, they are equivalent

Published on 12 Apr 2026 - 0:01

106

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Unnecessary proofs?

Published on 14 Apr 2026 - 14:40

171

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Prove the following statements: Linear algebra (Vector spaces)

Published on 15 Apr 2026 - 1:46

406

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Adapting a picture proof of trig's Angle Addition identities to angles greater than $90^\circ$

Published on 16 Apr 2026 - 7:00

80

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Prove that $\sum_{j=1}^{n} \mathbb{P}(I_j) \geq \mathbb{P}(I)$, when $\bigcup_{j=1}^n I_j \supseteq I$.

Published on 15 Apr 2026 - 13:50

60

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Attempt to proof following statement (kernel and image of a matrix)

Published on 11 Apr 2026 - 8:43

61

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Proof verification of Simplicial homology of $M_g$

Published on 13 Apr 2026 - 2:19

514

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If $V,W$ are finite-dimensional and $T: V \to W$ , $S: W \to V$ are injective linear maps then $T$ is an isomorphism

Published on 14 Apr 2026 - 1:14

List Question

Techniques to prove that solutions of ODE are defined for all time.

$\frac{u_n}{1+u^2_n} \longrightarrow \frac{u}{1+u^2}\quad \text{ strongly in }L^1(\mathbb R).$

Power of a point parabola theorem

Graph $G$ with different weights on edges has unique minimum spanning tree

prove: if a real number $a=\lim_{n\to \infty} a_n > c > 0$, then eventually $a_n > c$

Nested summation - intuition

Proof verification - Cauchy completeness of $\mathbb{R}$

Proof that If Two Homogeneous System in two unknowns has the same solutions, they are equivalent

Unnecessary proofs?

Prove the following statements: Linear algebra (Vector spaces)

Adapting a picture proof of trig's Angle Addition identities to angles greater than $90^\circ$

Prove that $\sum_{j=1}^{n} \mathbb{P}(I_j) \geq \mathbb{P}(I)$, when $\bigcup_{j=1}^n I_j \supseteq I$.

Attempt to proof following statement (kernel and image of a matrix)

Proof verification of Simplicial homology of $M_g$

If $V,W$ are finite-dimensional and $T: V \to W$ , $S: W \to V$ are injective linear maps then $T$ is an isomorphism

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