Library HoTT.WildCat.Category
Category of categories
Definition
Record Category := {
category_carrier :> Type;
isgraph_category_carrier :: IsGraph category_carrier;
is01cat_category_carrier :: Is01Cat category_carrier;
is2graph_category_carrier :: Is2Graph category_carrier;
is1cat_category_carrier :: Is1Cat category_carrier
}.
category_carrier :> Type;
isgraph_category_carrier :: IsGraph category_carrier;
is01cat_category_carrier :: Is01Cat category_carrier;
is2graph_category_carrier :: Is2Graph category_carrier;
is1cat_category_carrier :: Is1Cat category_carrier
}.
Morphisms of categories are given by functors.
2-morphisms of categories are given by natural transformations.
3-morphisms of categories are given by "wild modifications" - the underlying data of a modification, subject to no coherence conditions.