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单词 Existential proposition
释义

Existential proposition

中文百科

存在量化 Existential quantification

(重定向自Existential proposition)

在谓词逻辑中,存在量化是对一个域的至少一个成员的性质或关系的论断。使用叫做存在量词逻辑算子符号∃来指示存在量化。

它相对于声称某些事物对所有事物都为真的全称量化。

英语百科

Existential quantification 存在量化

(重定向自Existential proposition)

In predicate logic, an existential quantification is a type of quantifier, a logical constant which is interpreted as "there exists", "there is at least one", or "for some". Some sources use the term existentialization to refer to existential quantification. It is usually denoted by the turned E (∃) logical operator symbol, which, when used together with a predicate variable, is called an existential quantifier ("∃x" or "∃(x)"). Existential quantification is distinct from universal quantification ("for all"), which asserts that the property or relation holds for all members of the domain.

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更新时间:2025/6/19 12:31:25