Newbetuts
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New posts in category-theory
Solutions to questions in "Categories for the Working Mathematician"
reference-request
category-theory
Wedge sum of spheres is the quotient $X^n/X^{n-1}$
category-theory
homology-cohomology
homological-algebra
cw-complexes
Products and coproducts in the simplex category
category-theory
ordinals
What is meant by a "structure map"?
category-theory
terminology
Universal skew field of fractions
category-theory
noncommutative-algebra
universal-property
Non-trivial natural endomorphisms on $\operatorname{Top}$
proof-verification
category-theory
Tannakian theory for Lie algebras
category-theory
representation-theory
algebraic-groups
Showing a Functor is not Representable
abstract-algebra
ring-theory
category-theory
Definition of diffeological space
category-theory
Meaning of pullback
elementary-set-theory
category-theory
limits-colimits
Identify the universal property of kernels
category-theory
universal-property
Is there a universal property for the ultraproduct?
category-theory
model-theory
nonstandard-analysis
Category Theory textbook (learning through guided discovery Dummit and Foote)
abstract-algebra
reference-request
category-theory
book-recommendation
Trying to understand significance of monoid as a one object category
category-theory
monoid
Does free functor preserve monomorphism?
commutative-algebra
category-theory
Simple objects with isomorphic projective covers
category-theory
abelian-categories
projective-module
Can a free group over a set be constructed this way (without equivalence classes of words)?
group-theory
reference-request
category-theory
Simple example of product not preserving coequaliser in $\mathbf{Top}$
general-topology
category-theory
limits-colimits
Why is the limit the product, but not the coproduct?
category-theory
limits-colimits
Category theory text that defines composition backwards?
reference-request
category-theory
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