"Petersen's theorem" meaning in English

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  "lang_code": "en",
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      "glosses": [
        "The theorem stating that every cubic bridgeless graph contains a perfect matching."
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          "graph theory",
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          "cubic"
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        "(graph theory) The theorem stating that every cubic bridgeless graph contains a perfect matching."
      ],
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        "graph-theory",
        "mathematics",
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  "etymology_text": "Named after Julius Petersen.",
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      "expansion": "Petersen's theorem",
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  "lang_code": "en",
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      "glosses": [
        "The theorem stating that every cubic bridgeless graph contains a perfect matching."
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        "(graph theory) The theorem stating that every cubic bridgeless graph contains a perfect matching."
      ],
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        "graph-theory",
        "mathematics",
        "sciences"
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    }
  ],
  "word": "Petersen's theorem"
}