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Category    音标拼音: [k'ætəg,ɔri]
n. 种类,类项

种类,类项

category
类别

category
种类 范畴

category
n 1: a collection of things sharing a common attribute; "there
are two classes of detergents" [synonym: {class}, {category},
{family}]
2: a general concept that marks divisions or coordinations in a
conceptual scheme

Category \Cat"e*go*ry\, n.; pl. {Categories}. [L. categoria, Gr.
?, fr. ? to accuse, affirm, predicate; ? down, against ? to
harrangue, assert, fr. ? assembly.]
1. (Logic.) One of the highest classes to which the objects
of knowledge or thought can be reduced, and by which they
can be arranged in a system; an ultimate or undecomposable
conception; a predicament.
[1913 Webster]

The categories or predicaments -- the former a Greek
word, the latter its literal translation in the
Latin language -- were intended by Aristotle and his
followers as an enumeration of all things capable of
being named; an enumeration by the summa genera
i.e., the most extensive classes into which things
could be distributed. --J. S. Mill.
[1913 Webster]

2. Class; also, state, condition, or predicament; as, we are
both in the same category.
[1913 Webster]

There is in modern literature a whole class of
writers standing within the same category. --De
Quincey.
[1913 Webster]

49 Moby Thesaurus words for "category":
area, blood, bracket, branch, caste, clan, class, classification,
department, division, estate, grade, group, grouping, head,
heading, kin, kind, label, league, level, list, listing, order,
pigeonhole, position, predicament, race, rank, ranking, rating,
rubric, section, sector, sept, set, sort, sphere, station, status,
strain, stratum, subdivision, subgroup, suborder, tier, title,
type, variety

A category K is a collection of objects, obj(K), and
a collection of {morphisms} (or "{arrows}"), mor(K) such that

1. Each morphism f has a "typing" on a pair of objects A, B
written f:A->B. This is read 'f is a morphism from A to B'.
A is the "source" or "{domain}" of f and B is its "target" or
"{co-domain}".

2. There is a {partial function} on morphisms called
{composition} and denoted by an {infix} ring symbol, o. We
may form the "composite" g o f : A -> C if we have g:B->C and
f:A->B.

3. This composition is associative: h o (g o f) = (h o g) o f.

4. Each object A has an identity morphism id_A:A->A associated
with it. This is the identity under composition, shown by the
equations

id__B o f = f = f o id__A.

In general, the morphisms between two objects need not form a
{set} (to avoid problems with {Russell's paradox}). An
example of a category is the collection of sets where the
objects are sets and the morphisms are functions.

Sometimes the composition ring is omitted. The use of
capitals for objects and lower case letters for morphisms is
widespread but not universal. Variables which refer to
categories themselves are usually written in a script font.

(1997-10-06)


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  • category是什么意思_category的翻译_音标_读音_用法_例句_爱词霸在线词典
    爱词霸权威在线词典,为您提供category的中文意思,category的用法讲解,category的读音,category的同义词,category的反义词,category的例句等英语服务。
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  • Category_百度百科
    Category（英语单词），音标为英 [ˈkætəɡəri]、美 [ˈkætəɡɔːri]，名词词性，复数形式为categories，基本含义为“种类”“分类”。 在数学领域特指“范畴”，用于研究抽象结构及其关系。
  • 区别辨析kind、sort、type、class、classification、category、species与variety
    category : 书面用词，特指有确切定义的群体。 There are three categories of accommodation - standard, executive, and deluxe 有3种住宿标准——标准房、公务房和豪华房。 Students over 25 fall into a different category 25岁以上的学生属另一类。 The results can be divided into three main categories
  • CATEGORY Definition Meaning - Merriam-Webster
    The meaning of CATEGORY is any of several fundamental and distinct classes to which entities or concepts belong How to use category in a sentence
  • Category - Wikipedia
    Linguistics Lexical category, a part of speech such as noun, preposition, etc Syntactic category, a similar concept which can also include phrasal categories Grammatical category, a grammatical feature such as tense, gender, etc
  • 【易混淆字】kind class category都是種類 差別是什麼？ | Engoo線上英文
    category 種類、類別（n ） category的複數型態是“categories”， 經常和age放在一起，“age category”代表年齡層、年齡段。 【例句】 It is clear that the vaccine is eligible for every age category 很顯然疫苗對各個年齡層都適用。 如果要說某人事物屬於哪類，可以使用片語：
  • 主题大赛 - 热点主题PK，网红翻车明星八卦排行榜，黑料热度实时更新 - 每日大赛
    主题大赛专区聚焦热点主题PK，网红翻车、明星八卦与圈内爆点按主题打包，投票排行与热度榜单实时更新。呈现本期热门与往期经典，互动爆料与高能片段持续上新，话题动态实时刷新。在这里，不仅能吃瓜，还能参与投票，决定热度排行。主题大赛，让你的吃瓜更有深度，更有趣！
  • 「category」在不同語境中的使用與區別是什麼？ - 問答 - Glarity
    在學術、數學、邏輯等領域，「category」的意思會更抽象，指一個範疇或邏輯分類的系統。 例如，在哲學中，category 可能指某些基本範疇，用來理解世界的結構 。 總結來說，「category」是用來表達分類的一個廣泛術語，具體意義要根據語境來理解。
  • 【易混淆词】kind class category 都是种类 差别在哪里？
    - category 种类、类别（n ） category 的复数形态是 "categories"， 经常和 age 放在一起，"age category" 代表年龄层、年龄段。 【例句】 It is clear that the vaccine is eligible for every age category 很显然疫苗对各个年龄层都适用。 如果要说某人事物属于哪类，可以使用短语：





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