1.2 KiB
1.2 KiB
algebra.category.constructions
Common categories and constructions on categories. The following files are in this folder.
- functor : Functor category
- opposite : Opposite category
- set : Category of sets
- sum : Sum category
- product : Product category
- comma : Comma category
- cone : Cone category
- pushout : Pushout of categories, pushout of groupoids. Also more generally the category formed by a (quotient of) paths in a graph
- fundamental_groupoid : The fundamental groupoid of a type
Discrete, indiscrete or finite categories:
- finite_cats : 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 category. Also the groupoid formed by a 1-type
- indiscrete
- terminal
- initial