重释“李约瑟命题”(续)——论因果和选言命题的二难推论问题

A Re-explanation of the "Needham Thesis":On the Questions of the Paradoxes from Cause/Effect and Alternative Propositions

“李约瑟命题”除了在语义的逻辑结构上存在着三个二难推论外,在命题的表述形式上也存在着若干二难。它们由线性的因果决定和不相容选言命题的形式构成。本文尝试性地分析了这些命题的形式结构,尤其是当它们联用时所内含的二难推论的意义,并将之置于历史语境中作对比分析;最后,在方法论层面上概括其形成的原因,揭示其内在的转换方向的可能性。

In ＂Needham Thesis＂, paradoxes exist in semantic logic as well as in the formulation of proposition. It is formed by linear causal model and incompatible disjunctive proposition. This paper analyzes the structures of the propositions, especially the paradoxes when they are used together. It also has a comparative analysis in the historical context. In the end, it summarizes the reasons of the formation and reveals the possibility to change.