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15
Math.TechQA.Club
2026-04-17 10:41:37
72
Views
Verify the axiom of the category of Poset
Published on
17 Apr 2026 - 10:41
#elementary-set-theory
#category-theory
#order-theory
102
Views
Monoid morphisms
Published on
14 Apr 2026 - 7:23
#abstract-algebra
#category-theory
#formal-languages
#monoid
116
Views
I need help with this definition of a category from SEP
Published on
14 Apr 2026 - 21:22
#category-theory
150
Views
Explicit Coequalizer in Set
Published on
08 Apr 2026 - 22:53
#category-theory
106
Views
Does the forgetful functor from the inner product spaces to vector spaces has a left adjoint?
Published on
11 Apr 2026 - 22:19
#linear-algebra
#category-theory
89
Views
Are there adjoint localizations that aren't reflexive localizations?
Published on
25 Mar 2026 - 22:10
#category-theory
#localization
#adjoint-functors
79
Views
There is only one natural way to construct a map $X \times Y \rightarrow X$ for topological spaces.
Published on
12 Apr 2026 - 6:32
#category-theory
71
Views
Equivalence of toposes $\mathcal{E}/(X + Y) \simeq \mathcal{E}/X \times \mathcal{E}/Y$
Published on
14 Apr 2026 - 13:26
#category-theory
#topos-theory
159
Views
Is the "coequalizer of a pullback" the same as the "equalizer of a pushout"?
Published on
09 Apr 2026 - 15:05
#category-theory
#pullback
42
Views
Is this end-like property expressible in a nicer way?
Published on
25 Mar 2026 - 23:51
#category-theory
#functors
104
Views
Discrete categories / isomorphic objects in ncatlab
Published on
14 Apr 2026 - 20:38
#category-theory
187
Views
Exponents in a slice category of presheaves
Published on
24 Apr 2026 - 15:36
#category-theory
#topos-theory
#yoneda-lemma
125
Views
Prove that $\lambda$ is a homotopy equivalence.
Published on
16 Apr 2026 - 16:16
#general-topology
#algebraic-topology
#category-theory
45
Views
Definition of $\mathscr{U}$-small set
Published on
12 Apr 2026 - 18:23
#category-theory
1.3k
Views
Understanding the Giry monad
Published on
10 Apr 2026 - 19:14
#probability-theory
#category-theory
#monads
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