Statements (30)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:mathematical_concept
|
| gptkbp:application |
gptkb:logic
gptkb:topology real analysis |
| gptkbp:definedIn |
gptkb:projective_hierarchy
|
| gptkbp:field |
gptkb:set_theory
|
| gptkbp:higherLevels |
alternating quantifiers over reals
|
| https://www.w3.org/2000/01/rdf-schema#label |
projective sets
|
| gptkbp:importantFor |
closure under complements
closure under continuous images closure under countable intersections closure under countable unions closure under projections |
| gptkbp:level |
analytic sets
|
| gptkbp:relatedTo |
gptkb:Borel_sets
gptkb:axiom_of_determinacy axiom of choice large cardinals analytic sets coanalytic sets |
| gptkbp:secondLevelDomains |
coanalytic sets
|
| gptkbp:studiedBy |
gptkb:Kuratowski
gptkb:Gödel gptkb:Luzin gptkb:Moschovakis gptkb:Suslin |
| gptkbp:studiedIn |
gptkb:descriptive_set_theory
|
| gptkbp:subclassOf |
definable sets
|
| gptkbp:bfsParent |
gptkb:descriptive_set_theory
|
| gptkbp:bfsLayer |
6
|