Field theory and polynomials Definition
Archimedean ordered field
Builds on Ordered field
Definition
An ordered field is Archimedean when, for all and in with , there is a natural number with . Here means , with terms.
Remarks
With , the definition gives the Archimedean property: for each , some natural number exceeds . Conversely, this property implies the definition. An equivalent condition: for each in , there is a natural number with . The field of rational functions , with the order in which is larger than every real number, is not Archimedean.
Reading path
To understand this page from the ground up, read these 2 pages in order. The foundations come first.
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- Ordered field definition
- Archimedean ordered field definition
Where this leads
13 pages build on this one.
- Every real number has a decimal expansion
- Density of the irrationals
- The reals are Archimedean
- Archimedean property
- Ceiling function
- Characterization of the floor
- Density of the rationals
- There is a natural number n with 1/n below any positive epsilon
- Floor function
- Brent's method
- Bisection method
- Completeness of the real numbers
- Nested intervals theorem
Further reading
- Web https://en.wikipedia.org/wiki/Archimedean_property, Definition for linearly ordered groups
- Web https://en.wikipedia.org/wiki/Archimedean_property, Ordered fields
About this page
| Tag | 0HQARMKEV5 |
|---|---|
| URI | m2://0HQARMKEV5 |
| Kind | definition |
| Writing | W0 stub |
| MSC | 12J15 |
| Defines | Archimedean ordered field |
| Uses | Ordered field |
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