@prefix psr: <http://data.loterre.fr/ark:/67375/PSR> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

psr:-Q10Q14NT-1
  skos:prefLabel "topologie différentielle"@fr, "differential topology"@en ;
  a skos:Concept ;
  skos:narrower psr:-K6S3PK09-2 .

psr: a skos:ConceptScheme .
psr:-K6S3PK09-2
  skos:definition """In the area of mathematics known as differential topology, the disc theorem of Palais (1960) states that two embeddings of a closed <i>k</i>-disc into a connected <i>n</i>-manifold are ambient isotopic provided that if <i>k</i> = <i>n</i> the two embeddings are equioriented. The disc theorem implies that the connected sum of smooth oriented manifolds is well defined. 
<br/>(Wikipedia, The Free Encyclopedia, <a href="https://en.wikipedia.org/wiki/Disc_theorem">https://en.wikipedia.org/wiki/Disc_theorem</a>)"""@en ;
  dc:created "2023-08-02"^^xsd:date ;
  dc:modified "2023-08-02"^^xsd:date ;
  a skos:Concept ;
  skos:inScheme psr: ;
  skos:broader psr:-Q10Q14NT-1 ;
  skos:prefLabel "disc theorem"@en, "théorème du disque"@fr ;
  skos:exactMatch <https://en.wikipedia.org/wiki/Disc_theorem> .