"Zermelo-Fraenkel set theory" meaning in English

{
  "etymology_text": "Named after mathematicians Ernst Zermelo and Abraham Fraenkel.",
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        "head": "Zermelo-Fraenkel set theory"
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      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "name": "Mathematics",
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      "glosses": [
        "An axiomatic system that was proposed in the early 20th century in order to formulate a theory of sets free from paradoxes such as Russell's paradox, and became the standard form of axiomatic set theory."
      ],
      "id": "en-Zermelo-Fraenkel_set_theory-en-noun-GPVoLVUY",
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          "mathematics",
          "mathematics"
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        [
          "axiomatic system",
          "axiomatic system"
        ],
        [
          "formulate",
          "formulate"
        ],
        [
          "paradox",
          "paradox"
        ],
        [
          "Russell's paradox",
          "Russell's paradox"
        ]
      ],
      "raw_glosses": [
        "(mathematics) An axiomatic system that was proposed in the early 20th century in order to formulate a theory of sets free from paradoxes such as Russell's paradox, and became the standard form of axiomatic set theory."
      ],
      "related": [
        {
          "word": "Zermelo-Fraenkelian"
        }
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "Translations",
          "word": "Zermelon-Fraenkelin joukko-oppi"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "tags": [
            "feminine"
          ],
          "word": "Zermelo-Fraenkel-Mengenlehre"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "note": "no equivalent term in Polish",
          "sense": "Translations"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "Translations",
          "word": "but see teoria mnogości Zermelo-Fraenkel"
        }
      ]
    }
  ],
  "word": "Zermelo-Fraenkel set theory"
}

{
  "etymology_text": "Named after mathematicians Ernst Zermelo and Abraham Fraenkel.",
  "head_templates": [
    {
      "args": {
        "1": "-",
        "head": "Zermelo-Fraenkel set theory"
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      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "Zermelo-Fraenkelian"
    }
  ],
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        "Translation table header lacks gloss",
        "en:Mathematics"
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      "glosses": [
        "An axiomatic system that was proposed in the early 20th century in order to formulate a theory of sets free from paradoxes such as Russell's paradox, and became the standard form of axiomatic set theory."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "axiomatic system",
          "axiomatic system"
        ],
        [
          "formulate",
          "formulate"
        ],
        [
          "paradox",
          "paradox"
        ],
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          "Russell's paradox",
          "Russell's paradox"
        ]
      ],
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        "(mathematics) An axiomatic system that was proposed in the early 20th century in order to formulate a theory of sets free from paradoxes such as Russell's paradox, and became the standard form of axiomatic set theory."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Translations",
      "word": "Zermelon-Fraenkelin joukko-oppi"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "Zermelo-Fraenkel-Mengenlehre"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "note": "no equivalent term in Polish",
      "sense": "Translations"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "Translations",
      "word": "but see teoria mnogości Zermelo-Fraenkel"
    }
  ],
  "word": "Zermelo-Fraenkel set theory"
}