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15
Math.TechQA.Club
2018-07-09 16:27:08
190
Views
Duals In The Category Of Sets
Published on
09 Jul 2018 - 16:27
#category-theory
#set-theory
363
Views
Example of a category where some pair of objects lacks a product?
Published on
11 Jul 2018 - 3:05
#category-theory
48
Views
Compact notation for "morphism parameter" of a functor?
Published on
11 Jul 2018 - 13:46
#category-theory
#notation
74
Views
Question on Turaev's paper about axioms for topological quantum field theory
Published on
25 Mar 2026 - 14:23
#reference-request
#category-theory
#mathematical-physics
#quantum-field-theory
#topological-quantum-field-theory
528
Views
Functor to the empty (objectless) category?
Published on
27 Mar 2026 - 9:35
#category-theory
#functors
494
Views
Is it true that a full and faithful functor is an embedding iff it reflects identities?
Published on
12 Jul 2018 - 12:03
#proof-verification
#category-theory
73
Views
The special role of certain Sets in the theory of sets
Published on
12 Jul 2018 - 18:22
#elementary-set-theory
#category-theory
704
Views
Category theorists: would you use a software tool for diagramming / chasing?
Published on
27 Mar 2026 - 21:44
#soft-question
#category-theory
#math-software
#diagram-chasing
1.2k
Views
what is the difference between isomorphic and birational?
Published on
13 Jul 2018 - 14:11
#algebraic-geometry
#category-theory
65
Views
Struggling to understand "categories equivalence" definition. SOS.
Published on
26 Mar 2026 - 22:13
#category-theory
#definition
163
Views
Homeomorphism between function spaces
Published on
14 Jul 2018 - 8:47
#general-topology
#algebraic-topology
#category-theory
938
Views
Existence of injective resolutions
Published on
14 Jul 2018 - 10:19
#abstract-algebra
#category-theory
#homology-cohomology
#homological-algebra
1.7k
Views
Does the category of sheaves have enough injectives?
Published on
25 Mar 2026 - 22:11
#abstract-algebra
#category-theory
#homology-cohomology
#sheaf-theory
530
Views
Uniqueness of categorical products
Published on
25 Mar 2026 - 12:19
#category-theory
#products
77
Views
Confused about definition: "Pointwise Equalizer"
Published on
22 Mar 2026 - 15:58
#category-theory
#definition
#sheaf-theory
#locales
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