"pointclass" meaning in English

See pointclass in All languages combined, or Wiktionary

Noun

Forms: pointclasses [plural]
Etymology: point + class Etymology templates: {{compound|en|point|class}} point + class Head templates: {{en-noun}} pointclass (plural pointclasses)
  1. (mathematics, set theory) A collection of sets of points (ordinarily understood to be elements of some perfect Polish space), characterized by some sort of definability property. Wikipedia link: pointclass Categories (topical): Mathematics, Set theory
    Sense id: en-pointclass-en-noun--yUcp3lw Categories (other): English entries with incorrect language header Topics: mathematics, sciences, set-theory

Inflected forms

Download JSON data for pointclass meaning in English (1.6kB)

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      "args": {
        "1": "en",
        "2": "point",
        "3": "class"
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      "expansion": "point + class",
      "name": "compound"
    }
  ],
  "etymology_text": "point + class",
  "forms": [
    {
      "form": "pointclasses",
      "tags": [
        "plural"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Set theory",
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        }
      ],
      "glosses": [
        "A collection of sets of points (ordinarily understood to be elements of some perfect Polish space), characterized by some sort of definability property."
      ],
      "id": "en-pointclass-en-noun--yUcp3lw",
      "links": [
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          "point",
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        ],
        [
          "element",
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        ],
        [
          "Polish space",
          "Polish space"
        ],
        [
          "definability",
          "definability"
        ]
      ],
      "raw_glosses": [
        "(mathematics, set theory) A collection of sets of points (ordinarily understood to be elements of some perfect Polish space), characterized by some sort of definability property."
      ],
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        "mathematics",
        "sciences",
        "set-theory"
      ],
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    }
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}
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  "etymology_text": "point + class",
  "forms": [
    {
      "form": "pointclasses",
      "tags": [
        "plural"
      ]
    }
  ],
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      "expansion": "pointclass (plural pointclasses)",
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        "A collection of sets of points (ordinarily understood to be elements of some perfect Polish space), characterized by some sort of definability property."
      ],
      "links": [
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        "(mathematics, set theory) A collection of sets of points (ordinarily understood to be elements of some perfect Polish space), characterized by some sort of definability property."
      ],
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        "mathematics",
        "sciences",
        "set-theory"
      ],
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This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2024-05-31 from the enwiktionary dump dated 2024-05-02 using wiktextract (91e95e7 and db5a844). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.