13.1 Transmissions of classical information13.1.1 Preparation of classical information13.1.2 Encoding and decoding of classical information13.2 Unconstrained classical capacity13.2.1 Holevo–Schumacher–Westmoreland theorem13.2.2 Quantum version of Feinstein’s lemma13.3 Classical capacity of constrained channels13.4 Entanglement-assisted classical capacity13.4.1 Finite-dimensional channels13.4.2 Constrained infinite-dimensional channels13.4.3 Continuity of Cea(·):QC(A,B)→[0,+∞]13.5 Comparison of classical capacities13.5.1 Finite-dimensional unconstrained capacities13.5.2 Infinite-dimensional constrained capacities