Les nombres de Cuesta-Conway comme extension des ordinaux de Cantor: une courte introduction aux nombres surr\'eels
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Publication:6396617
arXiv2204.07575MaRDI QIDQ6396617
Publication date: 5 April 2022
Abstract: On Cuesta-Conway numbers as an extension of Cantor's ordinals: A short introduction to surreal numbers. The class of Cuesta-Conway numbers, the surreal numbers, can be defined simply, starting from their normal forms (families of exponentials indexed by ordinals), as an extension of the reals and ordinals from which easily follow addition, multiplication, and total order relation. A construction of this class yields an increasing sequence of real-closed fields, preliminary, so to say. A complete proof is also given the well-known result that the class of surreal numbers is a totally ordered, commutative, real-closed field!
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