"Li's criterion" meaning in English

{
  "etymology_text": "Named after Xian-Jin Li, who presented it in 1997.",
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  "lang_code": "en",
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      "glosses": [
        "A particular statement about the positivity of a certain sequence that is equivalent to the Riemann hypothesis."
      ],
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          "mathematics",
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        [
          "positivity",
          "positivity"
        ],
        [
          "sequence",
          "sequence"
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          "equivalent",
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        [
          "Riemann hypothesis",
          "Riemann hypothesis"
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      "raw_glosses": [
        "(mathematics) A particular statement about the positivity of a certain sequence that is equivalent to the Riemann hypothesis."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
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  "word": "Li's criterion"
}

{
  "etymology_text": "Named after Xian-Jin Li, who presented it in 1997.",
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  "lang_code": "en",
  "pos": "name",
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      "glosses": [
        "A particular statement about the positivity of a certain sequence that is equivalent to the Riemann hypothesis."
      ],
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          "mathematics",
          "mathematics"
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          "statement",
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          "positivity"
        ],
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          "sequence",
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          "equivalent",
          "equivalent"
        ],
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          "Riemann hypothesis",
          "Riemann hypothesis"
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      "raw_glosses": [
        "(mathematics) A particular statement about the positivity of a certain sequence that is equivalent to the Riemann hypothesis."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "Li's criterion"
}