Abstract

This article proposes a new way of defining Katz’s natural languages. Katz defines natural languages as abstract objects, which are later understood as collections of sentences. This is due to the fact that linguistics is understood as a part of mathematics. He proposes a realist linguistics that is not easy to adopt. We think that a realist linguistics that does not consider that linguistics is a part of mathematics could be better embraced. If linguistics were not a part of mathematics, a new definition of natural languages as abstract entities should be provided. We propose to use a hierarchized ontology, and to define natural languages as linguistic states of affairs, which result from the instantiation of a linguistic property in lower level linguistic abstract entities. Keywords: Katz, Natural Languages, Linguistic Abstract Entities.