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cardinal number |
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cardinal number The number that states how much or how many. In "record 43 has 7 fields," the 7 is cardinal. See cardinality. Contrast with ordinal number.cardinal number, numeral 1. a number denoting quantity but not order in a set 2. Maths Logic a. a measure of the size of a set that does not take account of the order of its members b. a particular number having this function cardinal number [′kärd·nəl ′nəm·bər] (mathematics) The number of members of a set; usually taken as a particular well-ordered set representative of the class of all sets which are in one-to-one correspondence with one another.
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