Newbetuts
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New posts in category-theory
What is the formal definition of a dual category?
category-theory
Where is the symmetric group hidden in the Yoneda lemma?
group-theory
category-theory
abstract-algebra
Can we think of an adjunction as a homotopy equivalence of categories?
soft-question
category-theory
adjoint-functors
Equivalence of Categories and of Their Functor Categories
category-theory
adjoint-functors
Direct limit of topological spaces
general-topology
category-theory
Will learning category theory lead to a better and clearer understanding of mathematics?
soft-question
category-theory
Types, Sets and Categories
category-theory
type-theory
Definition of Category
category-theory
set-theory
Why is $\text{Aut}(F)$ of the forgetful functor $F$ on $G$-sets isomorphic to $G$?
category-theory
What is the most general category in which exist short exact sequences?
category-theory
exact-sequence
abelian-categories
Adjunction space is a pushout
general-topology
category-theory
Why is it difficult to define n-category?
soft-question
category-theory
definition
higher-category-theory
Epic morphisms in the category of vector spaces. Is AC needed?
vector-spaces
category-theory
axiom-of-choice
epimorphisms
Adjunctions are Kan Extensions.
abstract-algebra
category-theory
adjoint-functors
Question about the definition of a category
category-theory
definition
Canonical example of a cosheaf
category-theory
intuition
sheaf-theory
When are quotients of homeomorphic spaces homeomorphic?
general-topology
category-theory
How does one show that two functors are *not* isomorphic?
category-theory
Different definitions of projective objects
category-theory
homological-algebra
Why determinant is a natural transformation?
category-theory
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