"集合論" meaning in Japanese

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "集合",
        "3": "論",
        "sort": "しゅうごうろん",
        "t1": "set",
        "t2": "theory",
        "tr1": "shūgō",
        "tr2": "-ron"
      },
      "expansion": "集合 (shūgō, “set”) + 論 (-ron, “theory”)",
      "name": "suf"
    }
  ],
  "etymology_text": "集合 (shūgō, “set”) + 論 (-ron, “theory”)",
  "forms": [
    {
      "form": "集合論",
      "ruby": [
        [
          "集",
          "しゅう"
        ],
        [
          "合",
          "ごう"
        ],
        [
          "論",
          "ろん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "shūgōron",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "sifugafuron",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "しふがふろん",
      "roman": "sifugafuron",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "しゅうごうろん",
        "hhira": "しふがふろん"
      },
      "expansion": "集(しゅう)合(ごう)論(ろん) • (shūgōron) ^(←しふがふろん (sifugafuron)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
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          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
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        },
        {
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          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
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        },
        {
          "kind": "other",
          "name": "Japanese terms suffixed with 論",
          "parents": [],
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        },
        {
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          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
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          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Set theory",
          "orig": "ja:Set theory",
          "parents": [
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "set theory"
      ],
      "id": "en-集合論-ja-noun-6ZH5I8jS",
      "links": [
        [
          "set theory",
          "set theory"
        ]
      ],
      "wikipedia": [
        "ja:集合論"
      ]
    }
  ],
  "sounds": [
    {
      "other": "しゅうごーろん"
    },
    {
      "ipa": "[ɕɨᵝːɡo̞ːɾõ̞ɴ]"
    }
  ],
  "word": "集合論"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "集合",
        "3": "論",
        "sort": "しゅうごうろん",
        "t1": "set",
        "t2": "theory",
        "tr1": "shūgō",
        "tr2": "-ron"
      },
      "expansion": "集合 (shūgō, “set”) + 論 (-ron, “theory”)",
      "name": "suf"
    }
  ],
  "etymology_text": "集合 (shūgō, “set”) + 論 (-ron, “theory”)",
  "forms": [
    {
      "form": "集合論",
      "ruby": [
        [
          "集",
          "しゅう"
        ],
        [
          "合",
          "ごう"
        ],
        [
          "論",
          "ろん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "shūgōron",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "sifugafuron",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "しふがふろん",
      "roman": "sifugafuron",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "しゅうごうろん",
        "hhira": "しふがふろん"
      },
      "expansion": "集(しゅう)合(ごう)論(ろん) • (shūgōron) ^(←しふがふろん (sifugafuron)?)",
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    }
  ],
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        "Japanese terms spelled with sixth grade kanji",
        "Japanese terms spelled with third grade kanji",
        "Japanese terms suffixed with 論",
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        "Japanese terms with non-redundant non-automated sortkeys",
        "Japanese terms with redundant sortkeys",
        "Japanese terms written with three Han script characters",
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      "glosses": [
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      ],
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        [
          "set theory",
          "set theory"
        ]
      ],
      "wikipedia": [
        "ja:集合論"
      ]
    }
  ],
  "sounds": [
    {
      "other": "しゅうごーろん"
    },
    {
      "ipa": "[ɕɨᵝːɡo̞ːɾõ̞ɴ]"
    }
  ],
  "word": "集合論"
}