语义预设的合理性辩护

弗雷格是第一个注意到命题的预设为假会影响到命题真值判定的哲学家。对这种因预设为假而形成的真值空隙,弗雷格、罗素和斯特劳森提出了不同的处理方式,由此奠定了预设的语义解释的基础。但预设的语义解释一直面临着种种质疑。这些质疑有说服力吗?应该放弃预设的语义解释吗?本文将对此进行分析,揭示这些质疑中所存在的问题,从而对预设的语义解释的合理性进行辩护。一、预设为假与真值空隙第一个把预设作为逻辑概念加以讨论的哲学家是弗雷格,其预设思想可以归纳为四点:第一,预

The Rational Defense of Semantic Presupposition

Frege was the first philosopher to notice the phenomenon that the falsity of a proposition’s presupposition would affect the judgment on the truth value of the proposition.Frege,Russell and Strawson proposed different approaches to the truth-value gap,and then laid the basis for semantic presupposition.However,there have been many objections to the presupposition.In this article I will be in defense of the rationality of semantic presupposition by estimating these objections and comparing the semantic interpretation with material implication.The defense will be based on three-valued logic.