Question

Categorial description of the subposet of $\prod_{i \in I}P_i$ of all $x \in \prod_{i \in I}P_i$ with $\{i \in I \mid x_i = \bot_{P_i}\}$ cofinite

score 73 · Answer 1 · 2026-04-12 23:48:18

Categorial description of the subposet of $\prod_{i \in I}P_i$ of all $x \in \prod_{i \in I}P_i$ with $\{i \in I \mid x_i = \bot_{P_i}\}$ cofinite

score 319 · Answer 2 · 2026-03-27 00:03:48

319

Views

The natural isomorphism in the Pontryagin Duality

Published on 27 Mar 2026 - 0:03

score 50 · Answer 3 · 2026-04-10 17:01:41

50

Views

Product preserving

Published on 10 Apr 2026 - 17:01

score 477 · Answer 4 · 2026-04-12 20:24:20

477

Views

Right adjoint preserves products

Published on 12 Apr 2026 - 20:24

score 241 · Answer 5 · 2026-04-12 22:48:16

241

Views

Right-adjoint to the forgetful functor $R-\mathbf{Alg} \to \mathbf{CRing}$

Published on 12 Apr 2026 - 22:48

score 418 · Answer 6 · 2026-04-12 12:10:10

418

Views

Counter-example for abelian category that is not concrete

Published on 12 Apr 2026 - 12:10

score 300 · Answer 7 · 2026-03-28 08:09:53

300

Views

Why are these two definitions of the left-adjoint to $u^p\colon PShv(D)\to PShv(C)$ equivalent?

Published on 28 Mar 2026 - 8:09

score 166 · Answer 8 · 2026-04-13 02:14:27

166

Views

Are epimorphisms in the category of magmas surjective?

Published on 13 Apr 2026 - 2:14

score 48 · Answer 9 · 2014-11-10 23:22:01

48

Views

Can any object in a Cartesian Closed Category regarded as a binary product?

Published on 10 Nov 2014 - 23:22

score 187 · Answer 10 · 2026-04-12 09:26:36

187

Views

$S$-local objects of presheaves are reflective and characterize local presentability

Published on 12 Apr 2026 - 9:26

score 1.4k · Answer 11 · 2026-04-13 08:47:02

1.4k

Views

Direct limits and inverse limits commuting

Published on 13 Apr 2026 - 8:47

score 1.5k · Answer 12 · 2026-03-25 17:52:04

1.5k

Views

Filtered colimits commute with forgetful functors

Published on 25 Mar 2026 - 17:52

score 223 · Answer 13 · 2026-04-11 20:14:04

223

Views

Do coalgebras arise outside the study of bi/Hopf-algebras?

Published on 11 Apr 2026 - 20:14

score 97 · Answer 14 · 2026-04-10 12:24:16

97

Views

Does monotonicity imply surjectivity?

Published on 10 Apr 2026 - 12:24

score 167 · Answer 15 · 2026-04-13 03:42:00

167

Views

Covariant Power Set Functor being injective on arrows.

Published on 13 Apr 2026 - 3:42

List Question

Categorial description of the subposet of $\prod_{i \in I}P_i$ of all $x \in \prod_{i \in I}P_i$ with $\{i \in I \mid x_i = \bot_{P_i}\}$ cofinite

The natural isomorphism in the Pontryagin Duality

Product preserving

Right adjoint preserves products

Right-adjoint to the forgetful functor $R-\mathbf{Alg} \to \mathbf{CRing}$

Counter-example for abelian category that is not concrete

Why are these two definitions of the left-adjoint to $u^p\colon PShv(D)\to PShv(C)$ equivalent?

Are epimorphisms in the category of magmas surjective?

Can any object in a Cartesian Closed Category regarded as a binary product?

$S$-local objects of presheaves are reflective and characterize local presentability

Direct limits and inverse limits commuting

Filtered colimits commute with forgetful functors

Do coalgebras arise outside the study of bi/Hopf-algebras?

Does monotonicity imply surjectivity?

Covariant Power Set Functor being injective on arrows.

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