@prefix psr: <http://data.loterre.fr/ark:/67375/PSR> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

psr:-R0LW4K33-Q
  skos:prefLabel "matrix multiplication"@en, "produit matriciel"@fr ;
  a skos:Concept ;
  skos:broader psr:-H8HFSDFX-5 .

psr:-D9KT6PSR-Z
  skos:prefLabel "Lie bracket"@en, "crochet de Lie"@fr ;
  a skos:Concept ;
  skos:broader psr:-H8HFSDFX-5 .

psr:-LCG3ZWKT-0
  skos:prefLabel "structure algébrique"@fr, "algebraic structure"@en ;
  a skos:Concept ;
  skos:narrower psr:-H8HFSDFX-5 .

psr: a skos:ConceptScheme .
psr:-H8HFSDFX-5
  skos:broader psr:-LCG3ZWKT-0 ;
  skos:prefLabel "internal binary operation"@en, "loi de composition interne"@fr ;
  skos:exactMatch <https://en.wikipedia.org/wiki/Binary_operation>, <https://fr.wikipedia.org/wiki/Loi_de_composition_interne> ;
  skos:narrower psr:-R0LW4K33-Q, psr:-D9KT6PSR-Z ;
  a skos:Concept ;
  skos:definition """En mathématiques, et plus précisément en algèbre générale, une loi de composition interne est une application qui, à deux éléments d'un ensemble <i>E</i>, associe un élément de <i>E</i>. Autrement dit, c'est une opération binaire par laquelle <i>E</i> est stable. L'addition et la multiplication dans l'ensemble des entiers naturels sont des exemples classiques de lois de composition internes. 
<br/>(Wikipedia, L'Encylopédie Libre, <a href="https://fr.wikipedia.org/wiki/Loi_de_composition_interne">https://fr.wikipedia.org/wiki/Loi_de_composition_interne</a>)"""@fr, """In mathematics, a binary operation or dyadic operation is a rule for combining two elements (called operands) to produce another element. More formally, a binary operation is an operation of arity two. More specifically, an internal binary operation on a set is a binary operation whose two domains and the codomain are the same set. Examples include the familiar arithmetic operations of addition, subtraction, and multiplication. Other examples are readily found in different areas of mathematics, such as vector addition, matrix multiplication, and conjugation in groups. 
<br/>(Wikipedia, The Free Encyclopedia, <a href="https://en.wikipedia.org/wiki/Binary_operation">https://en.wikipedia.org/wiki/Binary_operation</a>)"""@en ;
  skos:inScheme psr: .