Logical pluralism and linguistic relativism : a hypothesis about the relationship between logic, language and thought

Abstract

This paper aims to connect two debates about the relation among language, reasoning and thought that belong to different theoretical and disciplinary fields, but that are closely linked. On the one hand, the philosophical debate about logical pluralism. And, on the other hand, the linguistic debate around the Sapir-Whorf hypothesis. We propose a hypothesis compatible with a version of logical pluralism and linguistic relativism that makes it possible to explain the differences between thoughts expressed in different languages. This hypothesis, at the same time, supports the possibility of understanding and even translating different logical and linguistic variants. From a position akin to logical expressivism, we claim that there exists a proto-logic underlying all natural languages. The minimal logical operators proper of this proto-logic can be made explicit in a precise way in different formal systems. This gives rise to logical pluralism. We also offered an empirically informed philosophical argument in favor of this hypothesis.