@prefix isq: <https://w3id.org/standards/isq/ontologies/core/> .
@prefix smart: <https://example.org/smart-sdu/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<isq:t13-34>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "13-34" ;
  skosxl:prefLabel "irrelevance"@en ;
  skosxl:altLabel "H_{\"-\"}(I\\|X)"@en ;
  skos:definition "conditional entropy (<<t13-32,item 13-32>>) of a set stem:[I] of received characters\ngiven the set stem:[X] of emitted characters:\n\nstem:[H_{\"-\"}(I\\|X) = H_{\"+\"}(X\\|I) + H(I) - H(X)],\n\nwhere stem:[H_{\"+\"}(X\\|I)] is equivocation (<<t13-33,item 13-33>>)\nand stem:[H] is entropy (<<t13-25,item 13-25>>)\n"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-13> ;
  isq:hasUnit [
    skos:notation "Sh" ;
    skosxl:prefLabel "shannon"@en
  ] ;
  isq:hasUnit [
    skos:notation "Hart" ;
    skosxl:prefLabel "hartley"@en
  ] ;
  isq:hasUnit [
    skos:notation "nat" ;
    skosxl:prefLabel "natural unit of information"@en
  ] ;
  skos:note "Irrelevance is a quantitative measure of the\ninformation added to the emitted information owing to\ndistortion.\n\nSee <<iec60050-171,droploc%locality:item=\"171-07-25\">>.\n"@en ;
  iso:urn <urn:iec:std:iec:80000-13:2025-02:::13-34> .