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Quantifiers and properties, why and when do they "commute"? An elementary perpective of "non logician"

score 1.1k · Answer 1 · 2026-04-14 13:49:54

1.1k

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Quantifiers and properties, why and when do they "commute"? An elementary perpective of "non logician"

Published on 14 Apr 2026 - 13:49

score 596 · Answer 2 · 2026-04-10 06:11:48

596

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About proof of theorem on topology

Published on 10 Apr 2026 - 6:11

score 102 · Answer 3 · 2026-04-16 03:41:35

102

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Prove that incrementing n - 1 numbers is the same as decrementing 1

Published on 16 Apr 2026 - 3:41

score 42 · Answer 4 · 2026-04-16 01:47:37

42

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$\mathbb{E}[U_{(i)}U_{(j)}]$ from a Uniform population

Published on 16 Apr 2026 - 1:47

score 322 · Answer 5 · 2026-04-13 07:20:39

322

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Question on proof concerning : A bounded, monotone sequence converges

Published on 13 Apr 2026 - 7:20

score 569 · Answer 6 · 2026-04-22 20:03:07

569

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Use Mathematical Induction to prove equation?

Published on 22 Apr 2026 - 20:03

score 86 · Answer 7 · 2026-04-22 20:05:23

86

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Mathematical Induction, Want to check I'm getting this right

Published on 22 Apr 2026 - 20:05

score 49 · Answer 8 · 2026-04-14 17:22:13

49

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Stuck with this parametric equation of a hyperbola - involving multiplication of parameters, and perpendicular lines.

Published on 14 Apr 2026 - 17:22

score 408 · Answer 9 · 2026-04-23 00:40:44

408

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Proving by induction on an inequality and big-O notation?

Published on 23 Apr 2026 - 0:40

score 149 · Answer 10 · 2026-04-14 16:03:45

149

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On the proof of the going-up and down theorem

Published on 14 Apr 2026 - 16:03

score 38 · Answer 11 · 2026-04-12 11:53:58

38

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Question on convergent sequences being bounded

Published on 12 Apr 2026 - 11:53

score 117 · Answer 12 · 2026-04-15 03:45:36

Rewriting the expression $\sum_{p}\sum_{k=1}^{\infty}\frac{1}{k}\frac{1}{p^{ks}}=\sum_{n=2}^{\infty}\frac{\Lambda (n)}{\log n}\frac{1}{n^s}$

score 128 · Answer 13 · 2026-04-23 00:46:05

Prove that for all $n \ge 1$, $1-\frac{1}{2}+\frac{1}{3}-\frac{1}{4}+\cdots + \frac{1}{2n-1}-\frac{1}{2n}=\frac{1}{n+1}+\cdots+\frac{1}{2n}$

score 129 · Answer 14 · 2026-04-12 01:31:30

129

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Outer measure proof for sets.

Published on 12 Apr 2026 - 1:31

score 171 · Answer 15 · 2026-04-08 21:24:55

171

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Understanding a proof in Algebraic Number Theory

Published on 08 Apr 2026 - 21:24

List Question

Quantifiers and properties, why and when do they "commute"? An elementary perpective of "non logician"

About proof of theorem on topology

Prove that incrementing n - 1 numbers is the same as decrementing 1

$\mathbb{E}[U_{(i)}U_{(j)}]$ from a Uniform population

Question on proof concerning : A bounded, monotone sequence converges

Use Mathematical Induction to prove equation?

Mathematical Induction, Want to check I'm getting this right

Stuck with this parametric equation of a hyperbola - involving multiplication of parameters, and perpendicular lines.

Proving by induction on an inequality and big-O notation?

On the proof of the going-up and down theorem

Question on convergent sequences being bounded

Rewriting the expression $\sum_{p}\sum_{k=1}^{\infty}\frac{1}{k}\frac{1}{p^{ks}}=\sum_{n=2}^{\infty}\frac{\Lambda (n)}{\log n}\frac{1}{n^s}$

Prove that for all $n \ge 1$, $1-\frac{1}{2}+\frac{1}{3}-\frac{1}{4}+\cdots + \frac{1}{2n-1}-\frac{1}{2n}=\frac{1}{n+1}+\cdots+\frac{1}{2n}$

Outer measure proof for sets.

Understanding a proof in Algebraic Number Theory

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