Last Updated：2025/11/24

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(philosophy) The principle that if two objects are absolutely identical then they must be indistinguishable from one another with respect to all of their properties.

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indiscernibility of identicals

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Source Word

indiscernibility of identicals

Noun

Japanese Meaning

二つの対象が完全に同一であるならば、あらゆる性質において区別ができないという原理 / もし全ての性質が一致しているならば、その二つはどの視点から見ても識別不可能であるという考え方

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In his lecture, the philosopher carefully explained the indiscernibility of identicals and its implications for personal identity.

Google Translation / DeepL Translation

講義でその哲学者は、二つの対象が完全に同一であればあらゆる性質によって区別できないという原則と、それが個人の同一性に及ぼす影響について注意深く説明した。

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Sense（1）

One of the fundamental principles governing identity is that of substitutivity—or, as it might well be called, that of indiscernibility of identicals. It provides that, given a true statement of identity, one of its two terms may be substituted for the other in any true statement and the result will be true.

Google Translation / DeepL Translation

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indiscernibility of identicals

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