单词	Russell's paradox
释义	Russell's paradox noun Rus·​sell's paradox ˈrəsəlz- : a paradox that discloses itself in forming a class of all classes that are not members of themselves and in observing that the question of whether it is true or false if this class is a member of itself can be answered both ways compare liar paradox, vicious circle principle Word History Etymology after Bertrand Russell First Known Use 1904, in the meaning defined above
随便看	problem-solving problematic problematical problematically problematics problematist problematization problematize problematized problematizing problemer problemest problemist problemists problemize problemmer problemmest problems probola probolae probolas proboscidal proboscidate proboscide Proboscidea

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