4 Categories

• Chapter 11: Categories
  • Section 11.1: Categories
  • Section 11.2: Examples of Categories
  • Section 11.3: The Quadruple Adjunction With Sets
  • Section 11.4: Groupoids
  • Section 11.5: Functors
  • Section 11.6: Conditions on Functors
  • Section 11.7: More Conditions on Functors
  • Section 11.8: Even More Conditions on Functors
  • Section 11.9: Natural Transformations
  • Section 11.10: Categories of Categories
• Chapter 12: Presheaves and the Yoneda Lemma
  • Section 12.1: Presheaves
  • Section 12.2: Copresheaves
  • Section 12.3: Restricted Yoneda Embeddings and Yoneda Extensions
  • Section 12.4: Functor Tensor Products