List questions from solution-verification

Published on 28 Jan 2020 - 20:32

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How can I show that even digit palindromic numbers are divisible by $11$?

Published on 25 Mar 2026 - 10:56

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Proving if $x$ is rational then $\sqrt x$ is irrational

Published on 30 Mar 2026 - 12:38

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Proving discontinuity of linear operator using the def.

Published on 29 Jan 2020 - 3:47

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Show that the Cantor space is homeomorphic to the Cantor set, thought of as a subspace of $\left[0,1\right]$.

Published on 29 Jan 2020 - 4:23

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Show a real polynomial has at least one zero

Published on 29 Jan 2020 - 9:05

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Show a process is a Brownian motion

Published on 29 Jan 2020 - 9:07

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If $x^2 - y^2 = 1995$, prove that there are no integers x and y divisible by 3

Published on 29 Jan 2020 - 11:32

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Consider $f$ nonconstant holomorphic on $\overline{B}(z_0,r)$, with $|f(z)|=R$ on $\partial B(z_0,r)$. Prove: $B(0,R)\subseteq f(B(z_0,r))$.

Published on 29 Jan 2020 - 12:36

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Prove Verification: Proving the Principle of Backwards Induction - Tao Analysis I

Published on 28 Mar 2026 - 0:56

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Is this solution to this power series problem correct?

Published on 29 Jan 2020 - 13:14

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Equivalence of two "Opial's conditions"

Published on 29 Jan 2020 - 17:02

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Computation of the $2n$-th order determinant

Published on 29 Jan 2020 - 17:34

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solution verification modular arithmetic

Published on 29 Jan 2020 - 18:49

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Consider $m$ by $m$ matrix $\bf A$ such that all entries equal to $\frac{1}{m}$. Prove that $\mathbf{A}^{n} = \mathbf A$ for $n ≥ 2$

Published on 29 Jan 2020 - 20:16

List Question

Example of unbounded linear operator on space of sequences $C_{00}$

How can I show that even digit palindromic numbers are divisible by $11$?

Proving if $x$ is rational then $\sqrt x$ is irrational

Proving discontinuity of linear operator using the def.

Show that the Cantor space is homeomorphic to the Cantor set, thought of as a subspace of $\left[0,1\right]$.

Show a real polynomial has at least one zero

Show a process is a Brownian motion

If $x^2 - y^2 = 1995$, prove that there are no integers x and y divisible by 3

Consider $f$ nonconstant holomorphic on $\overline{B}(z_0,r)$, with $|f(z)|=R$ on $\partial B(z_0,r)$. Prove: $B(0,R)\subseteq f(B(z_0,r))$.

Prove Verification: Proving the Principle of Backwards Induction - Tao Analysis I

Is this solution to this power series problem correct?

Equivalence of two "Opial's conditions"

Computation of the $2n$-th order determinant

solution verification modular arithmetic

Consider $m$ by $m$ matrix $\bf A$ such that all entries equal to $\frac{1}{m}$. Prove that $\mathbf{A}^{n} = \mathbf A$ for $n ≥ 2$

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