@prefix ns0: <http://rdf-vocabulary.ddialliance.org/xkos#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<http://www.irandoc.acir/onto/irandoc/mathpro1081> ns0:contains <http://www.irandoc.acir/onto/irandoc/mathpro1969> .
<http://www.irandoc.acir/onto/irandoc/mathpro1969>
  skos:broader <http://www.irandoc.acir/onto/irandoc/mathpro1961> ;
  skos:prefLabel "حل غیربدیهی مسئله کوشی با شرط اولیه صفر"@fa, "nontrivial solution of the cauchy problem by zero initial condition"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/mathpro1961>
  skos:prefLabel "حل مسئله نظریه معادلات دیفرانسیل"@fa, "a solution of the problem of theory of differential equations"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/mathpro1969> .