List questions from proof-verification

Published on 18 Feb 2018 - 21:42

738

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Absolute continuity of a Borel measure

Published on 20 Mar 2026 - 0:41

304

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Why is this martingale? (Durrett 5.7.2)

Published on 26 Mar 2026 - 1:03

114

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Order of an element in the quotient group

Published on 25 Mar 2026 - 7:44

19

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Proving the formula of function graph

Published on 19 Feb 2018 - 15:27

248

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$\exists\alpha\in\mathbf{F}(|\alpha-\lambda|<\frac{1}{1000}\ \text{and}\ T-\alpha I \ \text{is}\ \text{invertible})$

Published on 19 Feb 2018 - 15:45

305

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What are the minimum and maximum values of $a+b+c$, given $\log|a|+\log|b|+\log|c|=0$?

Published on 19 Feb 2018 - 17:31

148

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$w^k$ and $w^{n-k}$ are conjugate and inverse of each other

Published on 26 Mar 2026 - 14:23

86

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Let $(X,Y)$ be uniform $(0, 1) \times (0, 1)$ random vector and $Z=\min \{X,Y\}$. Find $M(1)$

Published on 20 Feb 2018 - 5:40

28

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discontinuity of function

Published on 20 Feb 2018 - 6:50

94

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Is my proof acceptable? $\rho(\tau\sigma)\leq min\{\rho(\tau),\rho(\sigma)\}$

Published on 20 Feb 2018 - 8:34

76

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Homomorphism of groups and order of elements

Published on 20 Feb 2018 - 15:25

904

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Use a generating function to find the number of ways to distribute $r$ jelly beans among $8$ children if each child gets at least one jelly bean.

Published on 25 Mar 2026 - 7:52

98

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Is $\frac{3^n-(-1)^n}{n}\ge 4$?

Published on 25 Mar 2026 - 22:10

373

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Proof by induction when upper bound isn't $n$

Published on 25 Mar 2026 - 21:30

List Question

How to show a subadditivity of a worst conditional expectation?

Absolute continuity of a Borel measure

Why is this martingale? (Durrett 5.7.2)

Order of an element in the quotient group

Proving the formula of function graph

$\exists\alpha\in\mathbf{F}(|\alpha-\lambda|<\frac{1}{1000}\ \text{and}\ T-\alpha I \ \text{is}\ \text{invertible})$

What are the minimum and maximum values of $a+b+c$, given $\log|a|+\log|b|+\log|c|=0$?

$w^k$ and $w^{n-k}$ are conjugate and inverse of each other

Let $(X,Y)$ be uniform $(0, 1) \times (0, 1)$ random vector and $Z=\min \{X,Y\}$. Find $M(1)$

discontinuity of function

Is my proof acceptable? $\rho(\tau\sigma)\leq min\{\rho(\tau),\rho(\sigma)\}$

Homomorphism of groups and order of elements

Use a generating function to find the number of ways to distribute $r$ jelly beans among $8$ children if each child gets at least one jelly bean.

Is $\frac{3^n-(-1)^n}{n}\ge 4$?

Proof by induction when upper bound isn't $n$

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