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若且唯若

Mandarin · pinyin ruò qiě wéi ruò

if and only if

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Characters in this entry

若: ruò · if, supposing, assuming; similar
且: qiě · moreover, also (post-subject); about to, will soon (pre-verb)
唯: wéi · only; yes

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

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Mandarin tones

4–3–2–4 · ruo4 qie3 wei2 ruo4

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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.

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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.

conj

(Taiwan, mathematics, logic) if and only if

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

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