Every closed subset has a canonical reduced closed-subscheme structure defined affine-locally by when . It is the smallest closed subscheme with underlying set .

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  1. Closed subscheme
  2. Closed immersion
  3. Morphism of schemes
  4. Scheme
  5. Locally ringed space
  6. Ringed space
  7. Algebraic geometry
  8. Geometry and topology
  9. Area of mathematics
  10. Mathematics
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