1. valuation algebras
2. matroids
3. sheaves
4. fibrations
5. independence
6. variation
7. toposes
8. labelled fibered deduction systems
9. bayes nets
10. locality
11. Vickers
12. Barwise & Seligman
13. Origin Of Objects
14. modality
15. Goguen
16. Lawvere
17. Udday Reddy
18. Reynolds
19. Grothendieck topology
20. Taming Logic
21. Dividing Logic
22. bunched implication
23. Yellamraju V. Srinivas
24. distributors/profunctors
25. linear spaces
26. graphs
27. Oege de Moor
28. allegories