Categories of categories
Categories of categories
A certain amount of category theory is developed in an arbitrary finitely complete category with a factorization system on it, playing the role of the comprehensive factorization system on Cat. Those aspects related to the concepts of finality (in particular terminal objects), discreteness and components, representability, colimits and universal arrows, seem to be best expressed in this very general setting. Furthermore, at this level we are in fact doing not only (E,M)-category theory but, in a sense, also (E,M)-topology. Other axioms, regarding power objects, duality, exponentials and the arrow object, are considered.
29 pages
General Topology (math.GN), FOS: Mathematics, Mathematics - Category Theory, Category Theory (math.CT), 18A99, Mathematics - General Topology
General Topology (math.GN), FOS: Mathematics, Mathematics - Category Theory, Category Theory (math.CT), 18A99, Mathematics - General Topology
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