Abstract
In this paper we consider the implicational fragment of Abelian logic \({{{\sf A}_{\rightarrow}}}\). We show that although the Abelian groups provide an semantics for the set of theorems of \({{{\sf A}_{\rightarrow}}}\) they do not for the associated consequence relation. We then show that the consequence relation is not algebraizable in the sense of Blok and Pigozzi (Mem Am Math Soc 77, 1989). In the second part of the paper, we investigate an extension of \({{{\sf A}_{\rightarrow}}}\) in the same language and having the same set of theorems and show that this new consequence relation is algebraizable with the Abelian groups as its equivalent algebraic semantics. Finally, we show that although \({{{\sf A}_{\rightarrow}}}\) is not algebraizable, it is order-algebraizable in the sense of Raftery (Ann Pure Appl Log 164:251–283, 2013).
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Butchart, S., Rogerson, S. On the Algebraizability of the Implicational Fragment of Abelian Logic. Stud Logica 102, 981–1001 (2014). https://doi.org/10.1007/s11225-013-9515-2
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DOI: https://doi.org/10.1007/s11225-013-9515-2