Question

average of two mean absolute errors equals the mean absolute error over all points?

score 171 · Answer 1 · 2026-05-10 21:50:15

171

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average of two mean absolute errors equals the mean absolute error over all points?

Published on 10 May 2026 - 21:50

score 576 · Answer 2 · 2026-04-16 03:09:33

576

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Show that $(\frac{n}{n^{2}+1} \mid n \in \mathbb{N}^{+})$ is a decreasing sequence

Published on 16 Apr 2026 - 3:09

score 872 · Answer 3 · 2026-04-15 06:35:23

872

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Prove that if ax+by=c has an integer solution, then it has infinitely many integer solutions (x, y) where x is even or y is even.

Published on 15 Apr 2026 - 6:35

score 308 · Answer 4 · 2026-04-16 13:02:10

308

Views

Proof that if equation is multiple of number, similar equation is multiple too

Published on 16 Apr 2026 - 13:02

score 3.8k · Answer 5 · 2026-04-14 17:09:21

3.8k

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Petersen graph has no cycle of length $7$

Published on 14 Apr 2026 - 17:09

score 340 · Answer 6 · 2026-04-10 13:01:58

340

Views

Can someone please explain why this proof using strong induction makes intuitive sense?

Published on 10 Apr 2026 - 13:01

score 426 · Answer 7 · 2026-04-15 03:49:33

426

Views

Every basis of a topological space contains a basis of minimal cardinality - about finite topological space cases

Published on 15 Apr 2026 - 3:49

score 1.9k · Answer 8 · 2026-04-08 21:09:13

1.9k

Views

Every polyhedron is convex set(proof explanation)

Published on 08 Apr 2026 - 21:09

score 274 · Answer 9 · 2026-04-15 03:34:43

274

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Help proving the triangle inequality property for some distance metrics

Published on 15 Apr 2026 - 3:34

score 92 · Answer 10 · 2026-04-12 01:35:58

92

Views

Understanding the exactness of the sequence given by the restriction and inflation in Tate-cohomology of dimension $1$ - Neukirch

Published on 12 Apr 2026 - 1:35

score 1.2k · Answer 11 · 2026-04-16 12:08:22

1.2k

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The kernel of the quotient map $R \to R[x]/(ax-1)$

Published on 16 Apr 2026 - 12:08

score 46 · Answer 12 · 2026-04-12 12:43:01

46

Views

Why $C_i(X)=\mathbb{Z}$ for all $i$ in the proof below?

Published on 12 Apr 2026 - 12:43

score 5.7k · Answer 13 · 2026-04-18 13:43:49

5.7k

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Understanding this proof by strong induction that each n≥12 is n = 3a + 7b for some natural numbers (a,b)

Published on 18 Apr 2026 - 13:43

score 951 · Answer 14 · 2026-04-13 18:54:47

951

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How to prove partition into $A_k=\{2^kn | n \in \mathbb N \text{ and }n\text{ is odd}\}$

Published on 13 Apr 2026 - 18:54

score 2.2k · Answer 15 · 2026-04-18 18:05:55

2.2k

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Discrete Math, Strong induction. choosing between showing 'k' or k+1'

Published on 18 Apr 2026 - 18:05

List Question

average of two mean absolute errors equals the mean absolute error over all points?

Show that $(\frac{n}{n^{2}+1} \mid n \in \mathbb{N}^{+})$ is a decreasing sequence

Prove that if ax+by=c has an integer solution, then it has infinitely many integer solutions (x, y) where x is even or y is even.

Proof that if equation is multiple of number, similar equation is multiple too

Petersen graph has no cycle of length $7$

Can someone please explain why this proof using strong induction makes intuitive sense?

Every basis of a topological space contains a basis of minimal cardinality - about finite topological space cases

Every polyhedron is convex set(proof explanation)

Help proving the triangle inequality property for some distance metrics

Understanding the exactness of the sequence given by the restriction and inflation in Tate-cohomology of dimension $1$ - Neukirch

The kernel of the quotient map $R \to R[x]/(ax-1)$

Why $C_i(X)=\mathbb{Z}$ for all $i$ in the proof below?

Understanding this proof by strong induction that each n≥12 is n = 3a + 7b for some natural numbers (a,b)

How to prove partition into $A_k=\{2^kn | n \in \mathbb N \text{ and }n\text{ is odd}\}$

Discrete Math, Strong induction. choosing between showing 'k' or k+1'

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