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Logique et cryptographie : Russell, Wittgenstein, Gödel

Abstract : This text is one of the chapters of a book dedicated to Laurence Caillet, to be published by La Société d’ethnologie (Nanterre). The book proposes a series of contributions which are as many free variations around the theme of cryptography. Within this general framework, the present text goes through a moment in the history of logic, from Bertrand Russell to Kurt Gödel through Ludwig Wittgenstein. It considers in particular the role played in this episode by various encryption or coding processes: the encryption of the diary of the young Russell; the encryption of the most personal pages of Wittgenstein's notebooks; coding thanks to which Gödel was able to assign an integer to any mathematical formula, and which allowed him to demonstrate his famous theorem. In passing, it dismantles some of the inadequate, fanciful and simply incompetent readings that various essayists have allowed themselves to make of this theorem, the latest being the one Paul Jorion gave in his 2009 book Comment la vérité et la réalité furent inventées.
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Contributor : Dominique Casajus <>
Submitted on : Wednesday, May 20, 2020 - 4:55:01 PM
Last modification on : Tuesday, July 21, 2020 - 3:47:50 AM


  • HAL Id : halshs-02614167, version 1


Dominique Casajus. Logique et cryptographie : Russell, Wittgenstein, Gödel. Flavia Carraro; Dominique Casajus; Adeline Herrou; Sophie Houdart; Isabelle Rivoal. Cryptographies, Société d'ethnologie, A paraître. ⟨halshs-02614167⟩



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