Co- and Contra-categories: Theory of Decomposition and Directed Obstructions

Co- and Contra-categories: Theory of Decomposition and Directed Obstructions

Topos Institute via YouTube Direct link

Ultrafilters

7 of 15

7 of 15

Ultrafilters

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Classroom Contents

Co- and Contra-categories: Theory of Decomposition and Directed Obstructions

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  1. 1 Introduction
  2. 2 Definition
  3. 3 Structure
  4. 4 Examples
  5. 5 Subtlety
  6. 6 Preorder categories
  7. 7 Ultrafilters
  8. 8 A Logician
  9. 9 A to C
  10. 10 Contracategories
  11. 11 Example
  12. 12 Coassociativity
  13. 13 Contragraph example
  14. 14 Free construction
  15. 15 Categorical construction

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