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Est-il possible de tester si un nombre calculable est rationnel ou entier?
Est-il possible de tester algorithmiquement si un nombre calculable est rationnel ou entier? En d'autres termes, serait-il possible pour une bibliothèque qui implémente des nombres calculables de fournir les fonctions isIntegerou isRational? Je suppose que ce n'est pas possible, et que cela est en quelque sorte lié au fait qu'il …
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