We give an elementary
construction of any real closed field in terms of Nash function fields. We also
give a characterization of any Archimedean field in terms of fields of Nash
functions.
Keywords
Nash function, semialgebraic set, real closed field,
ordering
Faculty of Mathematics and Computer
Science
Department of Analytic Functions and Differential
Equations
University of Łódź
S. Banacha 22
90-238 Łódź
Poland