Department of Philosophy, University of Konstanz, Germany.
Cogn Sci. 2013 Aug;37(6):1074-106. doi: 10.1111/cogs.12057.
Conditionals somehow express conditional beliefs. However, conditional belief is a bi-propositional attitude that is generally not truth-evaluable, in contrast to unconditional belief. Therefore, this article opts for an expressivistic semantics for conditionals, grounds this semantics in the arguably most adequate account of conditional belief, that is, ranking theory, and dismisses probability theory for that purpose, because probabilities cannot represent belief. Various expressive options are then explained in terms of ranking theory, with the intention to set out a general interpretive scheme that is able to account for the most variegated usage of conditionals. The Ramsey test is only the first option. Relevance is another, familiar, but little understood item, which comes in several versions. This article adds a further family of expressive options, which is able to subsume also counterfactuals and causal conditionals, and indicates at the end how this family allows for partial recovery of truth conditions for conditionals.
条件句在某种程度上表达了条件信念。然而,条件信念是一种双命题态度,通常是不可进行真值评估的,这与无条件信念不同。因此,本文为条件句选择了一种表现主义语义学,将这种语义学建立在有争议的、最适合条件信念的解释上,即排序理论,并为此摒弃了概率论,因为概率无法代表信念。然后,根据排序理论解释了各种表现主义选项,旨在提出一个通用的解释方案,以解释条件句最具多样性的用法。拉姆齐测试只是第一个选项。关联是另一个熟悉但理解甚少的选项,它有几个版本。本文增加了另一个表现主义选项系列,它也能够包含反事实条件句和因果条件句,并在最后指出这个系列如何允许对条件句的真值条件进行部分恢复。