Newbetuts
.
New posts in functors
Equivalence of two definitions of local functors
algebraic-geometry
category-theory
functors
representable-functor
Definition of the cotensor in sSet
algebraic-topology
category-theory
functors
hom-functor
What is the difference betwen equivalence and isomorphism of functors in categories.
category-theory
functors
Quasi-inverse of an equivalence of categories is unique up to unique isomorphism
category-theory
functors
Exercise 1.5.xi from Emily Riehl's "Category Theory in Context" on properties of some functors
abstract-algebra
solution-verification
category-theory
adjoint-functors
functors
Adjunction in Abelian Categories
category-theory
abelian-categories
adjoint-functors
functors
'Contravariance has more mathematical structure in it whereas covariance is more geometrical and easy to understand.' Is it a serious claim?
algebraic-topology
category-theory
functors
Any two natural transformations between identity functors commute
category-theory
functors
natural-transformations
Example of a functor that doesn't reflect isomorphism
category-theory
functors
Example of a functor preserving only finite coproducts
category-theory
examples-counterexamples
functors
A category of functors?
category-theory
sheaf-theory
functors
Algebraic topology for non-nice spaces
general-topology
algebraic-topology
category-theory
functors
Forgetful functor from the slice category creates limits
category-theory
limits-colimits
functors
Prove that additive functor preserves products and coproducts
category-theory
direct-sum
functors
additive-categories
Can the map sending a presentation to its group be considered as a functor?
group-theory
category-theory
group-presentation
functors
combinatorial-group-theory
Prev