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15
Math.TechQA.Club
2026-04-14 18:54:26
206
Views
Brouwer's theorem proof using Category theory
Published on
14 Apr 2026 - 18:54
#category-theory
#fixed-point-theorems
#axioms
134
Views
Existence of (strong epi,mono)-factorization in finitely well-complete category
Published on
17 Apr 2026 - 8:09
#category-theory
93
Views
Generaliztion of an isomorphism theorem from group theory to general categories
Published on
14 Apr 2026 - 6:52
#group-theory
#category-theory
667
Views
How to find the products in a category, in general?
Published on
14 Apr 2026 - 8:34
#category-theory
355
Views
Showing the category of all vector spaces over a given field is not equivalent to its opposite category
Published on
16 Apr 2026 - 21:15
#category-theory
173
Views
Kernel of a homomorphism is a subobject?
Published on
12 Apr 2026 - 10:53
#abstract-algebra
#category-theory
439
Views
What is the relationship between string diagrams for monoidal categories, and string diagrams for natural transformations?
Published on
12 Apr 2026 - 16:07
#category-theory
256
Views
Proving the four lemma using members
Published on
06 Apr 2026 - 3:28
#category-theory
#homological-algebra
#abelian-categories
#diagram-chasing
146
Views
Does the map from a set to the free object on the set have to be injective?
Published on
12 Apr 2026 - 13:09
#category-theory
72
Views
An elementary question about horizontal composition in (weak) 2-categories
Published on
25 Mar 2026 - 14:27
#category-theory
#higher-category-theory
#enriched-category-theory
#2-categories
50
Views
Homological invariance met03
Published on
01 Apr 2026 - 12:37
#category-theory
#homological-algebra
#higher-category-theory
#rewriting-systems
53
Views
Construction of the finest congruence induced by a pair of parallel maps via equalizers.
Published on
15 Apr 2026 - 23:45
#category-theory
99
Views
Basic commutative algebra from a more advanced viewpoint: reference request
Published on
16 Apr 2026 - 2:37
#abstract-algebra
#reference-request
#commutative-algebra
#category-theory
125
Views
${\rm Hom}(\textbf{G},\textbf{Ab})$ is the category of $G$-modules
Published on
17 Apr 2026 - 2:52
#group-theory
#algebraic-geometry
#commutative-algebra
#category-theory
#modules
989
Views
Trying to understand proof of interchange law of natural transformation composition
Published on
09 Apr 2026 - 1:23
#category-theory
#proof-explanation
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