Sentidos argumentativos e polifônicos de números, no discurso, com base na Semântica Argumentativa 1 Argumentative and polyphonic meanings of numbers, within discourse, based on Argumentative Semantics

Based on Argumentative Semantics, proposed by Oswald Ducrot and collaborators, this paper aims to examine and to explain the argumentative and semantic relation existing between verbal and numerical language within discourse. Therefore, it is carried an argumentative and polyphonic analysis of one discourse, whose numbers used in it gain the function of the linguistic sign itself, constitute utterances and clearly make argumentations. That way, this paper meets works done within the area of mathematics education, as the work of Ole Skovsmose (2013), in which the author defends that mathematics serve as support for argumentations and debates related to social issues and thus it becomes part of a language that influences the effectuation of important decisions in nowadays society. It is intended, therefore, to introduce a theoretical, applied and interdisciplinary discussion, which, besides allowing the advancement of linguistic and mathematical sciences, can provide reading tools to be used in language teaching and inexact sciences teaching.