2 Appendix

Structure

• Chapter A: Retired Tags
  • Section A.1: Expanded Tags
  • Section A.2: Tags without Context
  • Section A.3: Obsolete Constructions
  • Section A.4: Reclassified Tags
  • Section A.5: Retired Subsections
    • Subsection A.5.1: The Universal Property of $\mathrm{h} \mathit{\operatorname{\mathcal{C}}}$