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  • Concept definitions are represented in two ways in
    Gloss
    tSNOMED CT release files
    :
    • As a 
      Gloss
      tstated view
       represented by
      Gloss
      taxioms
       that conform to the 
      Gloss
      tOWL Functional Syntax
       distributed in the 
      Specref
      RefTypefile
      tOWL Expression Reference Set file
      .
    • As an 
      Gloss
      tinferred view
       represented by 
      Gloss
      tdefining relationships
       that are distributed in the 
      Specref
      RefTypefile
      tRelationship relationship file
      . The inferred view is generated by applying 
      Gloss
      tdescription logic classification
       to the stated view.
  • Concept definitions include two distinct elements
    • Axioms that assert that a concept is a 
      Gloss
      tsubtype
       of one or more other concepts. In the 
      Gloss
      tinferred view
       these are represented as 
      Gloss
      tsubtype relationships
      .
    • Axioms that assert characteristics of a concept that distinguish it from its 
      Gloss
      tsupertypes
      . In the 
      Gloss
      tinferred view
       these are represented as 
      Gloss
      tattribute relationships
      .

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