Question

Is this proof about primes correct?

score 115 · Answer 1 · 2026-04-14 15:34:36

115

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Is this proof about primes correct?

Published on 14 Apr 2026 - 15:34

score 93 · Answer 2 · 2026-04-16 07:38:17

93

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Prove that $\lim_{x\rightarrow a}(1+u(x))^{v(x)}=e^{\lim_{x\rightarrow a}u(x)\cdot v(x)}$ if $u(x)\rightarrow 0$ and $v(x)\rightarrow \infty$

Published on 16 Apr 2026 - 7:38

score 392 · Answer 3 · 2026-04-11 00:04:50

392

Views

Evaluating liminf and limsup

Published on 11 Apr 2026 - 0:04

score 67 · Answer 4 · 2026-04-11 11:42:44

67

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Proof by contradiction that $\sqrt{2}$ is irrational, why assume the fraction is simplified?

Published on 11 Apr 2026 - 11:42

score 41 · Answer 5 · 2026-04-13 23:08:48

41

Views

Problem in understanding the steps to show linear combination of vectors imply linear combination of the set containing the sequence.

Published on 13 Apr 2026 - 23:08

score 952 · Answer 6 · 2026-05-14 10:07:30

952

Views

Prove That 2 Vectors are Perpendicular Using The Properties of Vectors

Published on 14 May 2026 - 10:07

score 1.1k · Answer 7 · 2026-04-11 23:50:44

1.1k

Views

Deriving/Proving the equation for a straight line

Published on 11 Apr 2026 - 23:50

score 2.6k · Answer 8 · 2026-04-11 09:41:06

2.6k

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Spectrum of the inverse operator?

Published on 11 Apr 2026 - 9:41

score 2.1k · Answer 9 · 2026-04-13 07:26:54

2.1k

Views

Let $W$ be a Wiener process. Which of the following define a Wiener process?

Published on 13 Apr 2026 - 7:26

score 103 · Answer 10 · 2026-04-13 12:02:04

103

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Reading a Proof About Showing A Set is Closed

Published on 13 Apr 2026 - 12:02

score 5.1k · Answer 11 · 2026-04-13 23:37:08

5.1k

Views

Hall's Theorem - Proof

Published on 13 Apr 2026 - 23:37

score 164 · Answer 12 · 2026-04-15 07:13:07

164

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Equivalent conditions for a finitely presented module

Published on 15 Apr 2026 - 7:13

score 516 · Answer 13 · 2026-04-17 03:19:16

516

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If $n$ is an odd perfect number then $n=p_1^{j_1}p_2^{2j_2}...p_r^{2j_r}$ where $p_i$ are distinct odd primes and $p_1\equiv j_1 \equiv 1 \pmod 4.$

Published on 17 Apr 2026 - 3:19

score 3.9k · Answer 14 · 2026-04-17 02:27:05

3.9k

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Is this correct: $\min (f(x)+g(x)+k(x)) \geq \min f(x)+ \min g(x)+ \min k(x)$?

Published on 17 Apr 2026 - 2:27

score 39 · Answer 15 · 2026-04-16 01:09:49

39

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If $f(x)$ is convex. Then, is $\sum_{a \in A}f(x).\alpha_a + \sum_{b \in B}f(x).\beta_b$ also convex

Published on 16 Apr 2026 - 1:09

List Question

Is this proof about primes correct?

Prove that $\lim_{x\rightarrow a}(1+u(x))^{v(x)}=e^{\lim_{x\rightarrow a}u(x)\cdot v(x)}$ if $u(x)\rightarrow 0$ and $v(x)\rightarrow \infty$

Evaluating liminf and limsup

Proof by contradiction that $\sqrt{2}$ is irrational, why assume the fraction is simplified?

Problem in understanding the steps to show linear combination of vectors imply linear combination of the set containing the sequence.

Prove That 2 Vectors are Perpendicular Using The Properties of Vectors

Deriving/Proving the equation for a straight line

Spectrum of the inverse operator?

Let $W$ be a Wiener process. Which of the following define a Wiener process?

Reading a Proof About Showing A Set is Closed

Hall's Theorem - Proof

Equivalent conditions for a finitely presented module

If $n$ is an odd perfect number then $n=p_1^{j_1}p_2^{2j_2}...p_r^{2j_r}$ where $p_i$ are distinct odd primes and $p_1\equiv j_1 \equiv 1 \pmod 4.$

Is this correct: $\min (f(x)+g(x)+k(x)) \geq \min f(x)+ \min g(x)+ \min k(x)$?

If $f(x)$ is convex. Then, is $\sum_{a \in A}f(x).\alpha_a + \sum_{b \in B}f(x).\beta_b$ also convex

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