Question

$K \leq H_1 \leq H_2 \leq G$, and that $K \trianglelefteq G$ and $H_1 \trianglelefteq H_2$. show that $[H_2 : H_1] = [H_2/K : H_1/K]$.

score 88 · Answer 1 · 2026-04-17 04:13:50

88

Views

$K \leq H_1 \leq H_2 \leq G$, and that $K \trianglelefteq G$ and $H_1 \trianglelefteq H_2$. show that $[H_2 : H_1] = [H_2/K : H_1/K]$.

Published on 17 Apr 2026 - 4:13

score 159 · Answer 2 · 2026-04-10 18:07:18

159

Views

In two dimensions show that the divergence transforms as a scalar under rotations.

Published on 10 Apr 2026 - 18:07

score 58 · Answer 3 · 2026-04-15 19:05:20

58

Views

Verification of the Computation of the Dimension of a Subspace (Solution Verification)

Published on 15 Apr 2026 - 19:05

score 186 · Answer 4 · 2026-04-15 17:30:11

186

Views

Why doesn't MVT hold when I take the limit as $x\to 0$?

Published on 15 Apr 2026 - 17:30

score 78 · Answer 5 · 2026-05-11 08:00:46

78

Views

Let α1 , …, αr be distinct even permutations, and β an odd permutation. Show then α1β, …, αr β are r distinct odd permutations.

Published on 11 May 2026 - 8:00

score 78 · Answer 6 · 2026-04-14 23:15:45

78

Views

In how many ways can you arrange the digits of the number $370612655$ to get a 9 digit odd number such that both $6$s come after the $2$?

Published on 14 Apr 2026 - 23:15

score 41 · Answer 7 · 2026-04-10 03:46:01

41

Views

Question on Self Adjoint operators

Published on 10 Apr 2026 - 3:46

score 48 · Answer 8 · 2026-04-16 07:36:45

48

Views

Prove that if $\Gamma \not \vdash \bot$, then there exists a valuation such that $[[\psi]] = 1$ for all $\psi \in \Gamma$.

Published on 16 Apr 2026 - 7:36

score 82 · Answer 9 · 2026-04-30 01:08:42

82

Views

Verification proof of a separation theorem like in $\mathbb{R}^n$

Published on 30 Apr 2026 - 1:08

score 85 · Answer 10 · 2026-04-15 03:26:17

85

Views

Cox's exercise 5.1 on (eventually) proving ring of integers is a dedekind domain

Published on 15 Apr 2026 - 3:26

score 30 · Answer 11 · 2026-04-15 11:36:14

30

Views

Construct a quadrilateral with given sides such that its diagonal bisects its angle

Published on 15 Apr 2026 - 11:36

score 64 · Answer 12 · 2026-04-17 07:35:20

64

Views

Check my proof (radius of convergence)

Published on 17 Apr 2026 - 7:35

score 62 · Answer 13 · 2026-04-16 04:48:34

62

Views

Verify this construction of a trapezoid given the length of each side

Published on 16 Apr 2026 - 4:48

score 50 · Answer 14 · 2026-04-15 07:37:30

50

Views

$\infty$ tosses with a symmetrical coin. With prob. $= 1$ there are $\infty$ many events "in the first $n$ tosses there were as many eagles as tails"

Published on 15 Apr 2026 - 7:37

score 69 · Answer 15 · 2026-04-12 05:35:57

69

Views

Finding matrix least square problem

Published on 12 Apr 2026 - 5:35

List Question

$K \leq H_1 \leq H_2 \leq G$, and that $K \trianglelefteq G$ and $H_1 \trianglelefteq H_2$. show that $[H_2 : H_1] = [H_2/K : H_1/K]$.

In two dimensions show that the divergence transforms as a scalar under rotations.

Verification of the Computation of the Dimension of a Subspace (Solution Verification)

Why doesn't MVT hold when I take the limit as $x\to 0$?

Let α1 , …, αr be distinct even permutations, and β an odd permutation. Show then α1β, …, αr β are r distinct odd permutations.

In how many ways can you arrange the digits of the number $370612655$ to get a 9 digit odd number such that both $6$s come after the $2$?

Question on Self Adjoint operators

Prove that if $\Gamma \not \vdash \bot$, then there exists a valuation such that $[[\psi]] = 1$ for all $\psi \in \Gamma$.

Verification proof of a separation theorem like in $\mathbb{R}^n$

Cox's exercise 5.1 on (eventually) proving ring of integers is a dedekind domain

Construct a quadrilateral with given sides such that its diagonal bisects its angle

Check my proof (radius of convergence)

Verify this construction of a trapezoid given the length of each side

$\infty$ tosses with a symmetrical coin. With prob. $= 1$ there are $\infty$ many events "in the first $n$ tosses there were as many eagles as tails"

Finding matrix least square problem

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