Estudo das formas de nega？？o no processo de ensino da matemática: ponto de encontro com os registros de representa？？o semiótica

it is very common to observe in teaching materials and even in teachers′ discourse the use of negation as an essential element in the teaching of mathematics. negation is present, for example, in counter-positive propositions, in non-examples, in counterexamples and in complementarity. this article discusses the possible uses of negation and how these forms of negation can be not only be supported by duval′s registers of semiotic representations, but also find paths to the learning of mathematics.