"comma category" meaning in All languages combined

See comma category on Wiktionary

Noun [English]

Forms: comma categories [plural]
Head templates: {{en-noun}} comma category (plural comma categories)
  1. (category theory) A category built out of a pair of functors that have the same codomain. Wikipedia link: comma category Categories (topical): Category theory Hyponyms: arrow category, slice category, coslice category Translations (Translations): Kommakategorie (German), 쉼표 범주 (swimpyo beomju) (Korean), категория запятой (kategorija zapjatoj) (Russian), categoría coma (Spanish)

Inflected forms

Download JSON data for comma category meaning in All languages combined (2.0kB)

{
  "forms": [
    {
      "form": "comma categories",
      "tags": [
        "plural"
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  "head_templates": [
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      "expansion": "comma category (plural comma categories)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w"
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      "examples": [
        {
          "text": "Given a pair of functors S:𝒜→𝒞 and T:ℬ→𝒞, objects of the comma category S↓T are arrows h:S(A)→T(B) parametrized by triples (A, B, h), and given morphisms f:A→A' and g:B→B', then a morphism of the said comma category is a commuting square parametrized by the pair (f, g) and spanning the area from h to h':S(A')→T(B') and from S(f) to T(g)."
        }
      ],
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        "A category built out of a pair of functors that have the same codomain."
      ],
      "hyponyms": [
        {
          "word": "arrow category"
        },
        {
          "word": "slice category"
        },
        {
          "word": "coslice category"
        }
      ],
      "id": "en-comma_category-en-noun-Nn9E~3Dm",
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        "(category theory) A category built out of a pair of functors that have the same codomain."
      ],
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        "engineering",
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      "translations": [
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "word": "Kommakategorie"
        },
        {
          "code": "ko",
          "lang": "Korean",
          "roman": "swimpyo beomju",
          "sense": "Translations",
          "word": "쉼표 범주"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "kategorija zapjatoj",
          "sense": "Translations",
          "word": "категория запятой"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "Translations",
          "word": "categoría coma"
        }
      ],
      "wikipedia": [
        "comma category"
      ]
    }
  ],
  "word": "comma category"
}
{
  "forms": [
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      "form": "comma categories",
      "tags": [
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  "head_templates": [
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      "expansion": "comma category (plural comma categories)",
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      "word": "slice category"
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          "text": "Given a pair of functors S:𝒜→𝒞 and T:ℬ→𝒞, objects of the comma category S↓T are arrows h:S(A)→T(B) parametrized by triples (A, B, h), and given morphisms f:A→A' and g:B→B', then a morphism of the said comma category is a commuting square parametrized by the pair (f, g) and spanning the area from h to h':S(A')→T(B') and from S(f) to T(g)."
        }
      ],
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      ],
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        "(category theory) A category built out of a pair of functors that have the same codomain."
      ],
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  "translations": [
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "word": "Kommakategorie"
    },
    {
      "code": "ko",
      "lang": "Korean",
      "roman": "swimpyo beomju",
      "sense": "Translations",
      "word": "쉼표 범주"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "kategorija zapjatoj",
      "sense": "Translations",
      "word": "категория запятой"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "Translations",
      "word": "categoría coma"
    }
  ],
  "word": "comma category"
}

This page is a part of the kaikki.org machine-readable All languages combined dictionary. This dictionary is based on structured data extracted on 2024-05-01 from the enwiktionary dump dated 2024-04-21 using wiktextract (f4fd8c9 and c9440ce). 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.