Question

Any small limit in Set may be expressed as an equalizer of a pair of maps between products (Help in understanding the proof)

score 155 · Answer 1 · 2026-04-16 14:27:04

155

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Any small limit in Set may be expressed as an equalizer of a pair of maps between products (Help in understanding the proof)

Published on 16 Apr 2026 - 14:27

score 130 · Answer 2 · 2026-03-28 22:26:39

130

Views

Coherence criteria for tricategories

Published on 28 Mar 2026 - 22:26

score 206 · Answer 3 · 2026-04-11 10:39:19

206

Views

Zero morphism does not depend on zero object

Published on 11 Apr 2026 - 10:39

score 111 · Answer 4 · 2026-04-16 10:50:53

111

Views

Injectives envelopes (hulls) in Grothendieck categories: proof from the Freyd's book

Published on 16 Apr 2026 - 10:50

score 165 · Answer 5 · 2026-04-25 17:06:32

165

Views

Exponential in cartesian closed categories behave itself like composition.

Published on 25 Apr 2026 - 17:06

score 95 · Answer 6 · 2026-04-11 14:53:06

95

Views

Bijection between classes of natural transformations involving Kan extensions.

Published on 11 Apr 2026 - 14:53

score 90 · Answer 7 · 2026-04-14 12:36:18

90

Views

How can we form the categories of $R$-modules from that of unital rings?

Published on 14 Apr 2026 - 12:36

score 75 · Answer 8 · 2026-04-12 00:18:34

75

Views

Natural transformation between group and characters group when restricting to isomorphisms

Published on 12 Apr 2026 - 0:18

score 67 · Answer 9 · 2026-04-26 14:33:27

67

Views

Is the category of fractions of a category with pullback-stable epimorphisms or pushout-stable monomorphisms balanced?

Published on 26 Apr 2026 - 14:33

score 170 · Answer 10 · 2026-04-09 08:03:20

170

Views

A question about adjoint functors:

Published on 09 Apr 2026 - 8:03

score 64 · Answer 11 · 2026-04-14 23:42:52

64

Views

Let $T$ be a left $R$ tilting(partial) module, then any direct sum of copies of $T$ is tilting(partial).

Published on 14 Apr 2026 - 23:42

score 420 · Answer 12 · 2026-03-26 04:50:55

420

Views

Non-Examples of Functors and Categories

Published on 26 Mar 2026 - 4:50

score 440 · Answer 13 · 2026-04-17 08:10:24

440

Views

Pullback of epi is epi in abelian category?

Published on 17 Apr 2026 - 8:10

score 55 · Answer 14 · 2026-04-09 10:52:29

55

Views

Example of objects and morphisms in h-TOP

Published on 09 Apr 2026 - 10:52

score 52 · Answer 15 · 2026-03-25 12:17:20

52

Views

Does isomorphism of sets of natural transformations imply isomorphism between functors?

Published on 25 Mar 2026 - 12:17

List Question

Any small limit in Set may be expressed as an equalizer of a pair of maps between products (Help in understanding the proof)

Coherence criteria for tricategories

Zero morphism does not depend on zero object

Injectives envelopes (hulls) in Grothendieck categories: proof from the Freyd's book

Exponential in cartesian closed categories behave itself like composition.

Bijection between classes of natural transformations involving Kan extensions.

How can we form the categories of $R$-modules from that of unital rings?

Natural transformation between group and characters group when restricting to isomorphisms

Is the category of fractions of a category with pullback-stable epimorphisms or pushout-stable monomorphisms balanced?

A question about adjoint functors:

Let $T$ be a left $R$ tilting(partial) module, then any direct sum of copies of $T$ is tilting(partial).

Non-Examples of Functors and Categories

Pullback of epi is epi in abelian category?

Example of objects and morphisms in h-TOP

Does isomorphism of sets of natural transformations imply isomorphism between functors?

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