# cardinality of a setの例文

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- There are two ways to define the "
*cardinality of a set* ": - Multiple occurrences of identical elements have no effect on the
*cardinality of a set* or its contents. - Since there is a bijection between the two sets involved, this follows in fact directly from the definition of the
*cardinality of a set*. - Formally, assuming the axiom of choice,
*cardinality of a set* " X " is the least ordinal ? such that there is a bijection between " X " and ?. - The cardinal characteristic non ( \ mathcal N ) is the least cardinality of a non-measurable set; equivalently, it is the least
*cardinality of a set* that is not a Lebesgue null set.