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Continuum (set theory)

From Wikipedia, the free encyclopedia

In the mathematical field of set theory, the continuum means the real numbers, or the corresponding (infinite) cardinal number, denoted by .[1][2][3] Georg Cantor proved that the cardinality is larger than the smallest infinity, namely, . He also proved that is equal to , the cardinality of the power set of the natural numbers.

The cardinality of the continuum is the size of the set of real numbers. The continuum hypothesis is sometimes stated by saying that no cardinality lies between that of the continuum and that of the natural numbers, , or alternatively, that .[2]

Linear continuum

According to Raymond Wilder (1965), there are four axioms that make a set C and the relation < into a linear continuum:

These axioms characterize the order type of the real number line.

See also

References

  1. ^ "Comprehensive List of Set Theory Symbols". Math Vault. 2020-04-11. Retrieved 2020-08-12.
  2. ^ a b Weisstein, Eric W. "Continuum". mathworld.wolfram.com. Retrieved 2020-08-12.
  3. ^ "Transfinite number | mathematics". Encyclopedia Britannica. Retrieved 2020-08-12.

Bibliography

This page was last edited on 12 August 2020, at 20:13
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