Discussion:Joseph Bertrand
Apparence
Real numbers
[modifier le code]Apologies for writing this in English. My only alternative would be to use Google translate. Somebody should add to this page the fact that Bertrand was the first to define the real numbers based on Dedekind cuts (before Dedekind!). See the English or German Wikipedia for sources. KarlFrei (discuter) 19 mars 2019 à 09:32 (CET)