lean2/hott/algebra/category/constructions/constructions.md

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algebra.category.constructions
==============================
Common categories and constructions on categories. The following files are in this folder.
* [functor](functor.hlean) : Functor category
* [opposite](opposite.hlean) : Opposite category
* [hset](hset.hlean) : Category of sets
* [sum](sum.hlean) : Sum category
* [product](product.hlean) : Product category
* [comma](comma.hlean) : Comma category
* [cone](cone.hlean) : Cone category
Discrete, indiscrete or finite categories:
* [finite_cats](finite_cats.hlean) : Some finite categories, which are diagrams of common limits (the diagram for the pullback or the equalizer). Also contains a general construction of categories where you give some generators for the morphisms, with the condition that you cannot compose two of thosex
* [discrete](discrete.hlean)
* [indiscrete](indiscrete.hlean)
* [terminal](terminal.hlean)
* [initial](initial.hlean)