Cardinal number

1) количественное числительное 2) [математика] мощность множества

Большой англо-русский словарь

Cardinal number

1) математика кардинальное число, кардинал 2) математика мощность множества

Англо-русский научно-технический словарь

Cardinal number

noun 1. a number (as 1, 5, 15) that is used in simple counting and that indicates how many elements there are in an assemblage — see number table 2. the property that a mathematical set has in common with all sets that can be put in one-to-one correspondence with it

Merriam-Webster's Collegiate Dictionary

Cardinal number

The cardinality of some set.

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