a generalized kind of number to denote the size of a well-ordered set.

listen to the pronunciation of a generalized kind of number to denote the size of a well-ordered set.
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Определение a generalized kind of number to denote the size of a well-ordered set. в Английский Язык Английский Язык словарь

A generalized kind of number to denote the size of a well-ordered set.
ordinal number