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= Negative Zahlen =
== Überlegungen zur Einführung der negativen Zahlen ==
  [https://mathinfo.unistra.fr/websites/math-info/irem/Publications/Annales_didactique/vol_03/adsc3_1990-003-2.pdf - Didaktische Abhandlung]
== Beweis -*-=+ ==
== Beweis -*-=+ ==
   [https://juergenfritz.com/2021/03/29/warum-minus-mal-minus-plus-ergibt-ein-ausflug-in-die-philosophie-der-mathematik/ - Beweis]
   [https://juergenfritz.com/2021/03/29/warum-minus-mal-minus-plus-ergibt-ein-ausflug-in-die-philosophie-der-mathematik/ - Beweis]

Latest revision as of 09:43, 3 May 2024