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logic (n.)

14世纪中叶, logike, “哲学的一个分支, 论述思维的形式; 区分真假推理的科学”, 来自古法语 logique (13世纪), 来自拉丁语 (ars) logica “逻辑”, 来自希腊语 (he) logike (techne) “(the) 推理(艺术)”, 来自fem. of logikos “与说话或推理有关” (也有“与言语有关” ), 来自 logos “理由, 观念, 词语” (见 Logos). 以前也有 logick. 有时以前是复数, 如 ethics, 但不常用. 意为“逻辑论证”, 出自17世纪. 嗟乎 logic-chopper “诡辩, 在论证中使用微妙区别的人” 出自1846年.

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Definitions of logic from WordNet

logic (n.)
the branch of philosophy that analyzes inference;
logic (n.)
reasoned and reasonable judgment;
it made a certain kind of logic
logic (n.)
the principles that guide reasoning within a given field or situation;
economic logic requires it
by the logic of war
logic (n.)
the system of operations performed by a computer that underlies the machine's representation of logical operations;
logic (n.)
a system of reasoning;
Synonyms: logical system / system of logic
From wordnet.princeton.edu