List questions from proof-explanation

Published on 15 Apr 2026 - 13:04

546

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On the proof of the Fourier inversion theorem using (continuous) Fejér kernels

Published on 14 Apr 2026 - 0:09

332

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Corollary 2.5 from Atiyah-Macdonald small question

Published on 25 Mar 2026 - 9:36

204

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Enrique Santos L's "Proof that no odd perfect number exists"

Published on 16 Apr 2026 - 5:11

100

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Asymptotic Notation Proof: Big-O and Big-Omega

Published on 10 Apr 2026 - 21:48

26

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Proving NOT Big-O: Need some Help with finding an Applicable Function

Published on 08 Apr 2026 - 19:29

57

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Proving an inequality with absolute values

Published on 13 Apr 2026 - 16:04

62

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Stuck on proof of Lemma 6.2.2 (Oksendal, SDEs)

Published on 26 Mar 2026 - 7:44

46

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Help on a proof by induction on n with an additional variable x

Published on 10 Apr 2026 - 22:14

176

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Proving that a function is either Big Oh or Big Omega for all functions

Published on 16 Apr 2026 - 4:52

98

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Finite Fraction Binary Representation: Need some help

Published on 10 Apr 2026 - 23:20

1.8k

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Constructing a bijection between two sets

Published on 12 Apr 2026 - 6:21

125

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Why is $\| x\| _1\leq n\| x\| _{\infty}$?

Published on 16 Apr 2026 - 15:28

3.8k

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Let G be a finite Abelian group and let p be a prime that divides the order of G. Then G has an element of order p.

Published on 16 Apr 2026 - 12:30

821

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Why does proof by contradiction not work on Rational numbers but only on Irrational numbers?

Published on 11 Apr 2026 - 4:13

List Question

Show that $f(x)=1/x$ is a continuous function for any $x\neq 0$

On the proof of the Fourier inversion theorem using (continuous) Fejér kernels

Corollary 2.5 from Atiyah-Macdonald small question

Enrique Santos L's "Proof that no odd perfect number exists"

Asymptotic Notation Proof: Big-O and Big-Omega

Proving NOT Big-O: Need some Help with finding an Applicable Function

Proving an inequality with absolute values

Stuck on proof of Lemma 6.2.2 (Oksendal, SDEs)

Help on a proof by induction on n with an additional variable x

Proving that a function is either Big Oh or Big Omega for all functions

Finite Fraction Binary Representation: Need some help

Constructing a bijection between two sets

Why is $\| x\| _1\leq n\| x\| _{\infty}$?

Let G be a finite Abelian group and let p be a prime that divides the order of G. Then G has an element of order p.

Why does proof by contradiction not work on Rational numbers but only on Irrational numbers?

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