EN
CONTENTS
1. Introduction and preliminaries.............................................................................. 5
2. Pre-scategories and scategories......................................................................... 6
3. Scategorization......................................................................................................... 8
4. Abstract scategories................................................................................................ 9
5. Substructures and products of structures........................................................... 9
6. Rich scategories...................................................................................................... 11
7. Locally small, bounded and regular scategories.............................................. 14
8. Free structures.......................................................................................................... 15
9. ϑ-ary acategories and scategories with (ϑ, ϰ)-ary morphisms....................... 17
10. Scategories closed in themselves..................................................................... 18
11. Additive scategories.............................................................................................. 19
12. Scategories with divisible morphisms.............................................................. 21
13. Quasi-algebras and algebras............................................................................. 21
14. A characterisation of some classes of quasi-algebras................................. 23
15. A characterization of S, P-closed classes of algebras................................... 27
References.................................................................................................................... 30