@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<http://www.irandoc.acir/onto/irandoc/mathpro608>
  skos:broader <http://www.irandoc.acir/onto/irandoc/mathpro655> ;
  skos:prefLabel "تابع بی‌نهایت مشتق‌پذیر"@fa, "infinitely differentiable function"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/mathpro655>
  skos:prefLabel "تابع مشتق‌پذیر"@fa, "differentiable function"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/mathpro608> .