Question

Proof explanation of a theorem in the paper "On the finitistic global dimension conjecture for Artin algebras"

score 130 · Answer 1 · 2026-04-14 19:00:18

130

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Proof explanation of a theorem in the paper "On the finitistic global dimension conjecture for Artin algebras"

Published on 14 Apr 2026 - 19:00

score 1.1k · Answer 2 · 2026-04-17 09:37:33

1.1k

Views

Cartesian Product Bijection?

Published on 17 Apr 2026 - 9:37

score 466 · Answer 3 · 2026-04-14 00:07:34

466

Views

How to show that normality is equivalent to the intermediate open set property? (Step-1 of Urysohn Lemma in Munkres)

Published on 14 Apr 2026 - 0:07

score 1k · Answer 4 · 2026-04-10 10:35:32

1k

Views

What does "for definiteness" mean in a proof?

Published on 10 Apr 2026 - 10:35

score 354 · Answer 5 · 2026-04-10 21:21:51

354

Views

Proof by Cases involving divisibility

Published on 10 Apr 2026 - 21:21

score 58 · Answer 6 · 2026-04-16 11:53:20

58

Views

Prove for $n\ge 2$, $2\binom{n}{2}+\binom{n}{1}=n^2$

Published on 16 Apr 2026 - 11:53

score 114 · Answer 7 · 2026-04-09 05:46:30

114

Views

Help with the fundamental theorem of calculus

Published on 09 Apr 2026 - 5:46

score 203 · Answer 8 · 2026-04-13 20:38:25

203

Views

Showing a perturbation of an invertible linear map is a diffeomorphism

Published on 13 Apr 2026 - 20:38

score 80 · Answer 9 · 2026-04-16 23:20:41

80

Views

Prove that $\left(\!\!\binom{n\vphantom{1}}{k}\!\!\right)=\sum_{i=0}^k \left(\!\!\binom{n-1\vphantom{1}}{i}\!\!\right)$

Published on 16 Apr 2026 - 23:20

score 67 · Answer 10 · 2026-04-14 11:46:07

67

Views

Point on the proof that a Banach space $X$ is reflexive iff $X'$ is reflexive.

Published on 14 Apr 2026 - 11:46

score 220 · Answer 11 · 2026-04-15 01:29:18

220

Views

Proposition $3.5$ from Commutative Algebra- Atiyah MacDonald

Published on 15 Apr 2026 - 1:29

score 157 · Answer 12 · 2026-04-13 17:51:33

157

Views

Wikipedia's proof that $f : \mathbb{R} \to \mathbb{R}, x \mapsto x^2$ is not uniformly continuous

Published on 13 Apr 2026 - 17:51

score 160 · Answer 13 · 2026-05-11 07:18:21

160

Views

Showing that a differential is nonzero

Published on 11 May 2026 - 7:18

score 920 · Answer 14 · 2026-04-16 13:58:10

920

Views

If a Cauchy Sequence has an accumulation point, then it converges to said accumulation point

Published on 16 Apr 2026 - 13:58

score 38 · Answer 15 · 2026-04-14 00:29:59

38

Views

Trying to prove that G is a bipartite graph...

Published on 14 Apr 2026 - 0:29

List Question

Proof explanation of a theorem in the paper "On the finitistic global dimension conjecture for Artin algebras"

Cartesian Product Bijection?

How to show that normality is equivalent to the intermediate open set property? (Step-1 of Urysohn Lemma in Munkres)

What does "for definiteness" mean in a proof?

Proof by Cases involving divisibility

Prove for $n\ge 2$, $2\binom{n}{2}+\binom{n}{1}=n^2$

Help with the fundamental theorem of calculus

Showing a perturbation of an invertible linear map is a diffeomorphism

Prove that $\left(\!\!\binom{n\vphantom{1}}{k}\!\!\right)=\sum_{i=0}^k \left(\!\!\binom{n-1\vphantom{1}}{i}\!\!\right)$

Point on the proof that a Banach space $X$ is reflexive iff $X'$ is reflexive.

Proposition $3.5$ from Commutative Algebra- Atiyah MacDonald

Wikipedia's proof that $f : \mathbb{R} \to \mathbb{R}, x \mapsto x^2$ is not uniformly continuous

Showing that a differential is nonzero

If a Cauchy Sequence has an accumulation point, then it converges to said accumulation point

Trying to prove that G is a bipartite graph...

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