We prove the nonexistence of universal Σ-presentable linear orderings as well as the effective infinity of the class of Σ-presentations of the natural order on ℝ over an admissible set ℍ\( \mathbb{F} \)(ℝ).
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References
A. I. Mal’tsev, “On recursive Abelian groups,” Dokl. Akad. Nauk SSSR, 146, No. 5, 1009-1012 (1962).
S. S. Goncharov, “The problem of the number of non-autoequivalent constructivizations,” Dokl. Akad. Nauk SSSR, 251, No. 2, 271-274 (1980).
S. S. Goncharov, “The problem of the number of non-autoequivalent constructivizations,” Algebra and Logic, 19, No. 6, 401-414 (1980).
D. R. Hirschfeldt, B. Khoussainov, R. A. Shore, and A. M. Slinko, “Degree spectra and computable dimension in algebraic structures,” Ann. Pure Appl. Log., 115, Nos. 1-3, 71-113 (2002).
Yu. L. Ershov, “Σ-definability of algebraic structures,” in Handbook of Recursive Mathematics, Vol. 1, Recursive Model Theory, Y. L. Ershov, S. S. Goncharov, A. Nerode, and J. B. Remmel (eds.), Elsevier, Amsterdam (1998), pp. 235-260.
A. S. Morozov and M. V. Korovina, “Σ-definability of countable structures over real numbers, complex numbers, and quaternions,” Algebra and Logic, 47, No. 3, 193-209 (2008).
A. V. Romina, “Autostability of hyperarithmetical models,” Algebra and Logic, 39, No. 2, 114-118 (2000).
J. Barwise, Admissible Sets and Structures, Springer, Berlin (1975).
Yu. L. Ershov, Definability and Computability, Sib. School Alg. Log. [in Russian], Nauch. Kniga, Novosibirsk (1996).
A. Tarski, A Decision Method for Elementary Algebra and Geometry, Univ. Calif. Press, Berkeley (1951).
D. Marker, Model Theory: An Introduction, Grad. Texts Math., 217, Springer, New York (2002).
Yu. L. Ershov, V. G. Puzarenko, and A. I. Stukachev, “HF-computability,” in Computability in Context. Computation and Logic in the Real World, S. B. Cooper and A. Sorbi (eds.), World Scientific, London (2011), pp. 173-248.
A. S. Morozov, “Some presentations of the real number field,” Algebra and Logic, 51, No. 1, 66-88 (2012).
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*Supported by RFBR (project No. 11-01-00236) and by the Federal Program “Scientific and Scientific-Pedagogical Cadres of Innovative Russia” for 2009-2013 (project No. 8227).
Translated from Algebra i Logika, Vol. 53, No. 3, pp. 340-371, May-June, 2014.
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Morozov, A.S. Σ-Presentations of the Ordering on the Reals. Algebra Logic 53, 217–237 (2014). https://doi.org/10.1007/s10469-014-9285-6
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DOI: https://doi.org/10.1007/s10469-014-9285-6