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- Projective_hierarchy abstract "In the mathematical field of descriptive set theory, a subset of a Polish space is projective if it is for some positive integer . Here is if is analytic if the complement of , , is if there is a Polish space and a subset such that is the projection of that is, The choice of the Polish space in the third clause above is not very important; it could be replaced in the definition by a fixed uncountable Polish space, say Baire space or Cantor space or the real line.".
- Projective_hierarchy wikiPageID "1236542".
- Projective_hierarchy wikiPageRevisionID "543898134".
- Projective_hierarchy hasPhotoCollection Projective_hierarchy.
- Projective_hierarchy subject Category:Descriptive_set_theory.
- Projective_hierarchy subject Category:Mathematical_logic_hierarchies.
- Projective_hierarchy type Abstraction100002137.
- Projective_hierarchy type Arrangement107938773.
- Projective_hierarchy type Group100031264.
- Projective_hierarchy type Hierarchy108377806.
- Projective_hierarchy type MathematicalLogicHierarchies.
- Projective_hierarchy type Ordering108456993.
- Projective_hierarchy type Series108457976.
- Projective_hierarchy comment "In the mathematical field of descriptive set theory, a subset of a Polish space is projective if it is for some positive integer . Here is if is analytic if the complement of , , is if there is a Polish space and a subset such that is the projection of that is, The choice of the Polish space in the third clause above is not very important; it could be replaced in the definition by a fixed uncountable Polish space, say Baire space or Cantor space or the real line.".
- Projective_hierarchy label "Projective hierarchy".
- Projective_hierarchy label "Projektive Hierarchie".
- Projective_hierarchy label "Zbiór rzutowy".
- Projective_hierarchy label "射影集合".
- Projective_hierarchy sameAs Projektive_Hierarchie.
- Projective_hierarchy sameAs 射影集合.
- Projective_hierarchy sameAs Zbiór_rzutowy.
- Projective_hierarchy sameAs m.04k__0.
- Projective_hierarchy sameAs Q219448.
- Projective_hierarchy sameAs Q219448.
- Projective_hierarchy sameAs Projective_hierarchy.
- Projective_hierarchy wasDerivedFrom Projective_hierarchy?oldid=543898134.
- Projective_hierarchy isPrimaryTopicOf Projective_hierarchy.