Sur les classes d'ensembles closes par rapport à certaines opérations élémentaires
Alfred Tarski (1930)
Fundamenta Mathematicae
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Alfred Tarski (1930)
Fundamenta Mathematicae
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A. Koźniewski, Adolphe Lindenbaum (1930)
Fundamenta Mathematicae
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Wacław Sierpiński, Alfred Tarski (1930)
Fundamenta Mathematicae
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Alfred Tajtebaum-Tarski (1924)
Fundamenta Mathematicae
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Le but de cette note est d'établir que l'axiome du choix de Zermelo équivaut à chacun des sept théorèmes suivantes: m, n, p, q étant des nombres cardinaux transfinis, [I] m.n = m + n; [II] m = m^2; [III] si m^2 = n^2, on a m = n; [IV] si m < n et p < q on a m+p < n+q; [IV'] si m < n et p < q. on a m.p < n.q; [V] si m+p < n+p on a m < n; [V'] si m.p < n.p on a m < n.;
Adolphe Lindenbaum (1933)
Fundamenta Mathematicae
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Otton Nikodym (1929)
Fundamenta Mathematicae
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Casimir Kuratowski (1937)
Fundamenta Mathematicae
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Alfred Tarski (1929)
Fundamenta Mathematicae
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Wacław Sierpiński (1930)
Fundamenta Mathematicae
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Wacław Sierpiński (1937)
Fundamenta Mathematicae
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