Exemple, explication et processus de démonstration

Abstract

The article looks at the proving process in mathematics from a didactic perspective. The study seeks to identify what metamathematics knowledge is at stake when mathematicians produce proof of implications with universal quantifiers. For this reason, we propose a modelling of the proof process – from the manipulation of examples to the finished product – based on dialogic logic tools. This modelling leads us to a characterization of the enunciative position which is needed to elaborate proofs. The results are derived from two cases: one in arithmetic integers, another in plane geometry. Their comparison allows us to discuss the limits of a transversal approach to this meta-mathematical knowledge without taking into account the specificity of mathematical fields.