category theory

category

functor

natural transformation

Cat

universal construction

representable functor

adjoint functor

limit/colimit

weighted limit

end/coend

Kan extension

Yoneda lemma

Isbell duality

Grothendieck construction

adjoint functor theorem

monadicity theorem

adjoint lifting theorem

Tannaka duality

Gabriel-Ulmer duality

small object argument

Freyd-Mitchell embedding theorem

relation between type theory and category theory

sheaf and topos theory

enriched category theory

higher category theory

Edit this sidebar

A subcategory $i : C \hookrightarrow D$ is called final (sometimes cofinal) if the injection functor $i$ is a cofinal functor.