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Mathematical Sciences Classification System

18Bxx - Special categories

• 2
  18B05
  Category of sets, characterizations [See also 03-XX]
• 1
  18B10
  Category of relations, additive relations
• 18B15
  Embedding theorems, universal categories [See also 18E20]
• 1
  18B20
  Categories of machines, automata, operative categories [See also 03D05, 68Qxx]
• 10
  18B25
  Topoi [See also 03G30]
• 5
  18B30
  Categories of topological spaces and continuous mappings [See also 54-XX]
• 1
  18B35
  Preorders, orders and lattices (viewed as categories) [See also 06-XX]
• 3
  18B40
  Groupoids, semigroupoids, semigroups, groups (viewed as categories) [See also 20Axx, 20L05, 20Mxx]
• 18B99
  None of the above, but in this section