Countable sets
Summary families
Article REF: AF72 V1
Countable sets
Summary families

Author : Bernard RANDÉ

Publication date: October 10, 2002 | Lire en français

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1. Countable sets

1.1 Definitions

Let I be a set. If it is finite, it is in bijection with an interval of type [|1, n|] . The integer n is then the cardinal of I . If the set is infinite, it is not always in bijection with a part of

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