The additive group of the rationals does not have an automatic presentation

Journal of Symbolic Logic 76 (4):1341-1351 (2011)
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Abstract

We prove that the additive group of the rationals does not have an automatic presentation. The proof also applies to certain other abelian groups, for example, torsion-free groups that are p-divisible for infinitely many primes p, or groups of the form ⊕ p∈I Z(p ∞ ), where I is an infinite set of primes

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References found in this work

Describing groups.André Nies - 2007 - Bulletin of Symbolic Logic 13 (3):305-339.
Finite automata presentable Abelian groups.André Nies & Pavel Semukhin - 2010 - Annals of Pure and Applied Logic 161 (3):458-467.

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