concrete category
category equipped with a faithful functor to the category of sets
category of sets
category in mathematics where the objects are sets and the morphisms are the total functions between the sets
category of metric spaces
mathematical category with metric spaces as its objects and distance-non-increasing maps as its morphisms
category of topological spaces
category whose objects are topological spaces and whose morphisms are continuous maps
category of manifolds
Category theory
category of magmas
category in mathematics
category of abelian groups
category in mathematics