function）和基數指數函數。根據柯尼希定理（英语：König's theorem (set theory)），有 ℷ ( κ ) > κ {\displaystyle \gimel (\kappa )>\kappa } 。 Thomas Jech, Set Theory, 3rd millennium ed. 在數學中，良序定理（英語：Well-ordering theorem），或稱 ...

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SET ROLE — set the current user identifier of the current session ...

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