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set theory > cardinality > cardinal number > transfinite number
set theory > ordinal number > transfinite number

Preferred term

transfinite number  

Definition

  • In mathematics, transfinite numbers or infinite numbers are numbers that are "infinite" in the sense that they are larger than all finite numbers. These include the transfinite cardinals, which are cardinal numbers used to quantify the size of infinite sets, and the transfinite ordinals, which are ordinal numbers used to provide an ordering of infinite sets. The term transfinite was coined in 1895 by Georg Cantor, who wished to avoid some of the implications of the word infinite in connection with these objects, which were, nevertheless, not finite. Few contemporary writers share these qualms; it is now accepted usage to refer to transfinite cardinals and ordinals as infinite numbers. Nevertheless, the term transfinite also remains in use.
    (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Transfinite_number)

Narrower concepts

Synonym(s)

  • infinite number

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URI

http://data.loterre.fr/ark:/67375/PSR-HNDGZW5K-T

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