Math 2.0

concept

Prime subfield

Summary

The prime subfield of a field is its smallest subfield. It is Q\mathbb{Q} or Fp\mathbb{F}_p, up to isomorphism, by the characteristic. The definition of the prime subfield gives the details.

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Sources

  1. Web https://en.wikipedia.org/wiki/Field_(mathematics), Subfields and prime fields

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Definitions