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词汇 Undefined term
分类 英语词汇 英语翻译词典
释义

Undefined term

中文百科

第一原理 Primitive notion

(重定向自Undefined term)

第一原理英语:First principle),哲学与逻辑名词,是一个最基本的命题或假设,不能被省略或删除,也不能被违反。第一原理相当于是在数学中的公理。最早由亚里斯多德提出。

英语百科

Primitive notion 第一原理

(重定向自Undefined term)

In mathematics, logic, and formal systems, a primitive notion is an undefined concept. In particular, a primitive notion is not defined in terms of previously defined concepts, but is only motivated informally, usually by an appeal to intuition and everyday experience. In an axiomatic theory or other formal system, the role of a primitive notion is analogous to that of axiom. In axiomatic theories, the primitive notions are sometimes said to be "defined" by one or more axioms, but this can be misleading. Formal theories cannot dispense with primitive notions, under pain of infinite regress.

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