List questions from proof-verification

Published on 26 Mar 2026 - 21:35

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Proving product of two column stochastic matrices is column stochastic (Proof verification)

Published on 25 Mar 2026 - 23:24

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Prove that ¬ is an equivalence relation

Published on 25 Mar 2026 - 14:21

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Erdős–Rényi $G(n,p)$ model, probability of given geodesic distance

Published on 25 Mar 2026 - 7:48

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Prove that the given metric satisfies Einstein's equations in the vacuum

Published on 25 Mar 2026 - 4:40

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Proving Limit of sequence using Epsilon-N definition

Published on 25 Mar 2026 - 9:50

97

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Statistics and Probability: What is the probability that a student did not play the piano?

Published on 09 May 2018 - 23:19

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Trying to build an algorithm for determining Big $\mathcal O$

Published on 26 Mar 2026 - 12:14

31

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Find limit of $\frac{\mathbb{E}|S_{n}|}{\sqrt{n}}$

Published on 10 May 2018 - 14:16

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Topological sorting algorithm on a directed graph

Published on 27 Mar 2026 - 21:43

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Choose a point $(X,Y)$ uniformly in the unit disk. What is $\rho(X,Y)?$

Published on 01 Apr 2026 - 21:33

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Proving whether the sets are open or closed in $\mathbb{R}$

Published on 10 May 2018 - 19:53

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Find $\text{Cov}[X,Y]$, given $X = \text{min}(U,V )$ and $Y = \text{max}(U,V )$

Published on 01 Apr 2026 - 21:31

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$\coprod_{i \in I} X_i$ metrizable iff $\forall i \in I: X_i$ metrizable

Published on 31 Mar 2026 - 20:27

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Find a left-inverse for the function $f:\Bbb Z \to \Bbb Z$ given by $f(n)=2n+1$.

Published on 25 Mar 2026 - 6:30

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Show that the equation $x^4 + 3 y^4 = 131$ has no integer solutions.

Proving product of two column stochastic matrices is column stochastic (Proof verification)

Prove that ¬ is an equivalence relation

Erdős–Rényi $G(n,p)$ model, probability of given geodesic distance

Prove that the given metric satisfies Einstein's equations in the vacuum

Proving Limit of sequence using Epsilon-N definition

Statistics and Probability: What is the probability that a student did not play the piano?

Trying to build an algorithm for determining Big $\mathcal O$

Find limit of $\frac{\mathbb{E}|S_{n}|}{\sqrt{n}}$

Topological sorting algorithm on a directed graph

Choose a point $(X,Y)$ uniformly in the unit disk. What is $\rho(X,Y)?$

Proving whether the sets are open or closed in $\mathbb{R}$

Find $\text{Cov}[X,Y]$, given $X = \text{min}(U,V )$ and $Y = \text{max}(U,V )$

$\coprod_{i \in I} X_i$ metrizable iff $\forall i \in I: X_i$ metrizable

Find a left-inverse for the function $f:\Bbb Z \to \Bbb Z$ given by $f(n)=2n+1$.

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