最終更新日:2024/08/01
The Hartogs number of a set X is the smallest ordinal that cannot be injected into X.
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The Hartogs number of a set X is the smallest ordinal that cannot be injected into X.
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The Hartogs number of a set X is the smallest ordinal that cannot be injected into X.
The Hartogs number of a set X is the smallest ordinal that cannot be injected into X.