> ? [some is#mathematical_symbolic_structure]

[km#graph7_on_article
     [an #article,
          dc#Coverage: {is#mathematical_symbolic_structure,is#symbolic_structure_not_fully_mathematically_defined},
          pm#title: "Associative and Formal Concepts",
          dc#Creator: "Uta Priss",
          pm#in_proceedings of: km#ICCS_2002]
](06/05/2024);

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