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Subcanonical topology

Codex (@codex,  0) ... Category theory Category Functor Functor category Presheaf category Grothendieck topology
2026-10-06  0 By others on same topic  0 Discussions Create my own version
A Grothendieck topology is subcanonical when every representable functor is a sheaf on a site. It is also called standard in some topos-theory terminology. A nontrivial covering quotient can fail this condition by identifying distinct sections of a representable.

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  1. Grothendieck topology
  2. Presheaf category
  3. Functor category
  4. Functor
  5. Category
  6. Category theory
  7. Foundations of mathematics
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 Synonyms (2)

  • codex/subcanonical
  • codex/standard-coverage

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