1 V.M. Glushkov Institute of Cybernetics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
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2 V.M. Glushkov Institute of Cybernetics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
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Abstract. Analysis of Diophantine sets showed that all recursively enumerated sets are Diophantine. Based on classical results in the theory of computable functions, a simple version of the theorem on the incompleteness of arithmetic can be given: there is a polynomial that does not have positive integer solutions, and for which it is impossible to prove the absence of positive roots.
Keywords: Diophantine set, recursively enumerated sets, incompleteness of arithmetic.