"incidence function" meaning in English

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      "glosses": [
        "A function that assigns a pair of vertices to each edge of a graph."
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      "id": "en-incidence_function-en-noun-7tK-mXCZ",
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          "mathematics",
          "mathematics"
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          "pair",
          "pair"
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          "vertices",
          "vertices"
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        [
          "edge",
          "edge"
        ],
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          "graph",
          "graph"
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        "(mathematics) A function that assigns a pair of vertices to each edge of a graph."
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  "word": "incidence function"
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        "(mathematics) A function that assigns a pair of vertices to each edge of a graph."
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  "word": "incidence function"
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