“预设”作为一个逻辑概念，是德国哲学家、逻辑学家和数学家弗雷格首先提出来的。

As a logic concept, presupposition was first proposed by Germanicphilosopher G. Frege, who is also a logician and mathematician.

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预设理论是1892年由德国哲学家弗雷格提出的，原本属于逻辑范畴的，后来引入到语言学领域。

Presupposition theory was raised by Gottlob Frege, the German philosopher in 1892. It's a concept of logic at the beginning, then introduced to linguistics domain later.

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20世纪西方哲学在弗雷格、罗素、维特根斯坦等哲学家的努力下，发生了一次语言学转型。

The western philosophy had got a linguistics turn in the 20th century through the endeavor of Bertrand Russell, Friedrich Frege and Ludwig Wittgenstein.

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