\contentsline {section}{\numberline {1}Basic Notions and Notations}{1}
\contentsline {section}{\numberline {2}Basic Examples}{5}
\contentsline {section}{\numberline {3}Duality}{6}
\contentsline {section}{\numberline {4}On the Inside of Categories}{7}
\contentsline {section}{\numberline {5}Algebras}{12}