@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:-H60G0MTS-S
  skos:prefLabel "Brun's theorem"@en, "théorème de Brun"@fr ;
  a skos:Concept ;
  skos:related psr:-SWR0DVVH-5 .

psr:-T0WTK17L-B
  skos:prefLabel "nombre premier"@fr, "prime number"@en ;
  a skos:Concept ;
  skos:related psr:-SWR0DVVH-5 .

psr:-SWR0DVVH-5
  a skos:Concept ;
  skos:related psr:-T0WTK17L-B, psr:-H60G0MTS-S ;
  skos:definition """En mathématiques, deux <b>nombres premiers jumeaux</b> sont deux nombres premiers qui ne diffèrent que de 2. Hormis pour le couple (2, 3), cet écart entre nombres premiers de 2 est le plus petit possible. Les plus petits nombres premiers jumeaux sont 3 et 5, 5 et 7, 11 et 13. En <time class="nowrap" datetime="2019-10" data-sort-value="2019-10">octobre 2019</time>, les plus grands nombres premiers jumeaux connus, découverts en 2016 dans le cadre du projet de calcul distribué <i><span class="lang-en" lang="en">PrimeGrid</span></i></span>, sont 2 996 863 034 895 × 2<sup>1 290 000</sup> ± 1 ; ils possèdent 388 342 chiffres en écriture décimale. Selon la <b>conjecture des nombres premiers jumeaux</b>, il existe une infinité de nombres premiers jumeaux ; les observations numériques et des raisonnements heuristiques justifient la conjecture, mais aucune démonstration n'en a encore été faite. 
<br/>(Wikipedia, L'Encylopédie Libre, <a href="https://fr.wikipedia.org/wiki/Nombres_premiers_jumeaux">https://fr.wikipedia.org/wiki/Nombres_premiers_jumeaux</a>)"""@fr, """A twin prime is a prime number that is either 2 less or 2 more than another prime number—for example, either member of the twin prime pair (17, 19) or (41, 43). In other words, a twin prime is a prime that has a prime gap of two. Sometimes the term twin prime is used for a pair of twin primes; an alternative name for this is prime twin or prime pair.
<br/>Twin primes become increasingly rare as one examines larger ranges, in keeping with the general tendency of gaps between adjacent primes to become larger as the numbers themselves get larger. However, it is unknown whether there are infinitely many twin primes (the so-called twin prime conjecture) or if there is a largest pair. The breakthrough work of Yitang Zhang in 2013, as well as work by James Maynard, Terence Tao and others, has made substantial progress towards proving that there are infinitely many twin primes, but at present this remains unsolved. 
<br/>(Wikipedia, The Free Encyclopedia, <a href="https://en.wikipedia.org/wiki/Twin_prime">https://en.wikipedia.org/wiki/Twin_prime</a>)"""@en ;
  skos:inScheme psr: ;
  dc:created "2023-08-18"^^xsd:date ;
  skos:prefLabel "nombres premiers jumeaux"@fr, "twin prime numbers"@en ;
  dc:modified "2024-10-18"^^xsd:date ;
  skos:broader psr:-CVDPQB0Q-M ;
  skos:exactMatch <https://en.wikipedia.org/wiki/Twin_prime>, <https://fr.wikipedia.org/wiki/Nombres_premiers_jumeaux> .

psr:-CVDPQB0Q-M
  skos:prefLabel "natural numbers"@en, "entier naturel"@fr ;
  a skos:Concept ;
  skos:narrower psr:-SWR0DVVH-5 .

psr: a skos:ConceptScheme .