@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:t13-25>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "13-25" ;
  skosxl:prefLabel "entropy"@en ;
  skosxl:altLabel "H"@en ;
  skos:definition "stem:[H(X) = sum_{i=1}^n p(X_i) I(X_i)] for the set\nstem:[X = {X_1, ..., X_n}]\n\nwhere stem:[p(X_i)] is the probability, and\n\nstem:[I(X_i)] is the information content of event\nstem:[X_i]\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 "See <<iec60050-171,droploc%locality:item=\"171-07-15\">>."@en ;
  iso:urn <urn:iec:std:iec:80000-13:2025-02:::13-25> .