"пустое множество" meaning in Russian

{
  "forms": [
    {
      "form": "пусто́е мно́жество",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "pustóje mnóžestvo",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "пусто́го мно́жества",
      "tags": [
        "genitive"
      ]
    },
    {
      "form": "пусты́е мно́жества",
      "tags": [
        "nominative",
        "plural"
      ]
    },
    {
      "form": "пусты́х мно́жеств",
      "tags": [
        "genitive",
        "plural"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "declension",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "ru-noun-table",
      "source": "declension",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "hard-stem",
      "source": "declension",
      "tags": [
        "class"
      ]
    },
    {
      "form": "accent-a",
      "source": "declension",
      "tags": [
        "class"
      ]
    },
    {
      "form": "пусто́е мно́жество",
      "roman": "pustóje mnóžestvo",
      "source": "declension",
      "tags": [
        "nominative",
        "singular"
      ]
    },
    {
      "form": "пусты́е мно́жества",
      "roman": "pustýje mnóžestva",
      "source": "declension",
      "tags": [
        "nominative",
        "plural"
      ]
    },
    {
      "form": "пусто́го мно́жества",
      "roman": "pustóvo mnóžestva",
      "source": "declension",
      "tags": [
        "genitive",
        "singular"
      ]
    },
    {
      "form": "пусты́х мно́жеств",
      "roman": "pustýx mnóžestv",
      "source": "declension",
      "tags": [
        "genitive",
        "plural"
      ]
    },
    {
      "form": "пусто́му мно́жеству",
      "roman": "pustómu mnóžestvu",
      "source": "declension",
      "tags": [
        "dative",
        "singular"
      ]
    },
    {
      "form": "пусты́м мно́жествам",
      "roman": "pustým mnóžestvam",
      "source": "declension",
      "tags": [
        "dative",
        "plural"
      ]
    },
    {
      "form": "пусто́е мно́жество",
      "roman": "pustóje mnóžestvo",
      "source": "declension",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "пусты́е мно́жества",
      "roman": "pustýje mnóžestva",
      "source": "declension",
      "tags": [
        "accusative",
        "plural"
      ]
    },
    {
      "form": "пусты́м мно́жеством",
      "roman": "pustým mnóžestvom",
      "source": "declension",
      "tags": [
        "instrumental",
        "singular"
      ]
    },
    {
      "form": "пусты́ми мно́жествами",
      "roman": "pustými mnóžestvami",
      "source": "declension",
      "tags": [
        "instrumental",
        "plural"
      ]
    },
    {
      "form": "пусто́м мно́жестве",
      "roman": "pustóm mnóžestve",
      "source": "declension",
      "tags": [
        "prepositional",
        "singular"
      ]
    },
    {
      "form": "пусты́х мно́жествах",
      "roman": "pustýx mnóžestvax",
      "source": "declension",
      "tags": [
        "plural",
        "prepositional"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "пусто́е",
        "2": "+",
        "3": "_",
        "4": "мно́жество"
      },
      "expansion": "пусто́е мно́жество • (pustóje mnóžestvo) n inan (genitive пусто́го мно́жества, nominative plural пусты́е мно́жества, genitive plural пусты́х мно́жеств)",
      "name": "ru-noun+"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian links with redundant alt parameters",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian links with redundant wikilinks",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian nouns with accent pattern a",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "ru",
          "name": "Mathematics",
          "orig": "ru:Mathematics",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "empty set"
      ],
      "id": "en-пустое_множество-ru-noun-oajn7dFM",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "empty set",
          "empty set"
        ]
      ],
      "raw_glosses": [
        "(mathematics) empty set"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[pʊˈstojə ˈmnoʐɨstvə]"
    }
  ],
  "word": "пустое множество"
}

{
  "forms": [
    {
      "form": "пусто́е мно́жество",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "pustóje mnóžestvo",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "пусто́го мно́жества",
      "tags": [
        "genitive"
      ]
    },
    {
      "form": "пусты́е мно́жества",
      "tags": [
        "nominative",
        "plural"
      ]
    },
    {
      "form": "пусты́х мно́жеств",
      "tags": [
        "genitive",
        "plural"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "declension",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "ru-noun-table",
      "source": "declension",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "hard-stem",
      "source": "declension",
      "tags": [
        "class"
      ]
    },
    {
      "form": "accent-a",
      "source": "declension",
      "tags": [
        "class"
      ]
    },
    {
      "form": "пусто́е мно́жество",
      "roman": "pustóje mnóžestvo",
      "source": "declension",
      "tags": [
        "nominative",
        "singular"
      ]
    },
    {
      "form": "пусты́е мно́жества",
      "roman": "pustýje mnóžestva",
      "source": "declension",
      "tags": [
        "nominative",
        "plural"
      ]
    },
    {
      "form": "пусто́го мно́жества",
      "roman": "pustóvo mnóžestva",
      "source": "declension",
      "tags": [
        "genitive",
        "singular"
      ]
    },
    {
      "form": "пусты́х мно́жеств",
      "roman": "pustýx mnóžestv",
      "source": "declension",
      "tags": [
        "genitive",
        "plural"
      ]
    },
    {
      "form": "пусто́му мно́жеству",
      "roman": "pustómu mnóžestvu",
      "source": "declension",
      "tags": [
        "dative",
        "singular"
      ]
    },
    {
      "form": "пусты́м мно́жествам",
      "roman": "pustým mnóžestvam",
      "source": "declension",
      "tags": [
        "dative",
        "plural"
      ]
    },
    {
      "form": "пусто́е мно́жество",
      "roman": "pustóje mnóžestvo",
      "source": "declension",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "пусты́е мно́жества",
      "roman": "pustýje mnóžestva",
      "source": "declension",
      "tags": [
        "accusative",
        "plural"
      ]
    },
    {
      "form": "пусты́м мно́жеством",
      "roman": "pustým mnóžestvom",
      "source": "declension",
      "tags": [
        "instrumental",
        "singular"
      ]
    },
    {
      "form": "пусты́ми мно́жествами",
      "roman": "pustými mnóžestvami",
      "source": "declension",
      "tags": [
        "instrumental",
        "plural"
      ]
    },
    {
      "form": "пусто́м мно́жестве",
      "roman": "pustóm mnóžestve",
      "source": "declension",
      "tags": [
        "prepositional",
        "singular"
      ]
    },
    {
      "form": "пусты́х мно́жествах",
      "roman": "pustýx mnóžestvax",
      "source": "declension",
      "tags": [
        "plural",
        "prepositional"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "пусто́е",
        "2": "+",
        "3": "_",
        "4": "мно́жество"
      },
      "expansion": "пусто́е мно́жество • (pustóje mnóžestvo) n inan (genitive пусто́го мно́жества, nominative plural пусты́е мно́жества, genitive plural пусты́х мно́жеств)",
      "name": "ru-noun+"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Russian entries with incorrect language header",
        "Russian hard-stem neuter-form accent-a nouns",
        "Russian hard-stem neuter-form nouns",
        "Russian inanimate nouns",
        "Russian lemmas",
        "Russian links with redundant alt parameters",
        "Russian links with redundant wikilinks",
        "Russian multiword terms",
        "Russian neuter nouns",
        "Russian nouns",
        "Russian nouns with accent pattern a",
        "Russian terms with IPA pronunciation",
        "ru:Mathematics"
      ],
      "glosses": [
        "empty set"
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "empty set",
          "empty set"
        ]
      ],
      "raw_glosses": [
        "(mathematics) empty set"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[pʊˈstojə ˈmnoʐɨstvə]"
    }
  ],
  "word": "пустое множество"
}