V2EX intensionality

Intensionality

定义 Definition

intensionality(内涵性/强度性)指某些语言表达式或语境的性质:在这种语境中,即使两个词或短语指称同一对象(外延相同),也不能随意互换而不改变句子的真值或意义。常见于信念、欲望、可能性/必然性等“态度”或“模态”语境。(另有相关概念 intension“内涵” 与 extension“外延”。)

发音 Pronunciation

/ntnnlti/

例句 Examples

The term “belief” often creates intensionality in a sentence.
“believe(相信)”这个词常常使句子呈现内涵性(强度性)语境。

Even if “the morning star” and “the evening star” refer to the same planet, intensionality can make substitution fail in reports of what someone knows.
即使“晨星”和“昏星”指的是同一颗行星,在描述某人“知道什么”的句子里,内涵性也可能导致替换失败。

词源 Etymology

来自 intensional(内涵的、强度性的)+ -ity(名词后缀,表示“性质/状态”)。intensionalintension 同源,源自拉丁语 intendere(“伸展、指向、意指”),在逻辑与语义学中逐渐固定为与 extension(外延)对的一组术语。

相关词 Related Words

文学与经典用例 Literary Works

  • W. V. O. Quine, Word and Object(讨论内涵语境与替换问题)
  • Rudolf Carnap, Meaning and Necessity(模态与语义中的内涵/外延区分)
  • Richard Montague, Universal Grammar(形式语义学中对内涵性的系统处理)
  • Saul Kripke, Naming and Necessity(与指称、必然性及相关语境的讨论常相连)
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