Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:mathematical_concept
|
| gptkbp:appliesTo |
plane topology
|
| gptkbp:author |
gptkb:Zygmunt_Janiszewski
|
| gptkbp:field |
gptkb:topology
|
| https://www.w3.org/2000/01/rdf-schema#label |
Janiszewski theorem
|
| gptkbp:namedAfter |
gptkb:Zygmunt_Janiszewski
|
| gptkbp:publicationYear |
1920
|
| gptkbp:publishedIn |
gptkb:Fundamenta_Mathematicae
|
| gptkbp:relatedTo |
gptkb:Jordan_curve_theorem
separation axioms |
| gptkbp:sentence |
If A and B are closed subsets of the plane whose union is connected, then any continuum that separates the union must separate at least one of A or B.
|
| gptkbp:bfsParent |
gptkb:Zygmunt_Janiszewski
|
| gptkbp:bfsLayer |
6
|