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充要條件

简充要条件 · 繁充要條件

Mandarin · pinyin chōng yào tiáo jiàn

necessary and sufficient condition

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Characters in this entry

充: chōng · fill, be full, supply
要: yào · necessary, essential; necessity
條: tiáo · clause, condition; string, stripe
件: jiàn · numerary adjunct for article; matter
条: tiáo · clause, condition; string, stripe

Written characters and their own readings; the entry’s pronunciation is shown above.

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Mandarin tones

1–4–2–4 · chong1 yao4 tiao2 jian4

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Read this spelling in Classical texts

Follow a written form into the eight pinned witnesses: Analects, Mencius, Laozi, Zhuangzi, Xunzi, Han Feizi, Sunzi and the Mao Shijing. A match is a place to investigate; it does not prove that a modern dictionary sense fits the passage.

充要條件 · find source passages ↗ · 充要条件 · find source passages ↗

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Rime Cantonese 粵拼

cung1 jiu3 tiu4 gin2

Cantonese word readings for 充要條件. This lexicon supplies readings, not definitions.

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Wiktionary English definitions · Chinese section

Independent source senses for this spelling, with usage labels retained. Not matched to the pronunciation above.

noun

(logic) short for 充分必要條件／充分必要条件 (chōngfèn bìyào tiáojiàn)

Source page · dump 2026-09-02 · Contributors & history

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