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Definition: Subfield

Let \((F, + ,\cdot)\) be a field. A subset \(S\subseteq R\) is called a subfield of \(F\), if \((S, + ,\cdot)\) itself is a field.

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Definitions: 1 2
Proofs: 3
Theorems: 4

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References

Bibliography

1. Knauer Ulrich: "Diskrete Strukturen - kurz gefasst", Spektrum Akademischer Verlag, 2001