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Variable Sharing in Connexive Logic

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Abstract

However broad or vague the notion of connexivity may be, it seems to be similar to the notion of relevance even when relevance and connexive logics have been shown to be incompatible to one another. Relevance logics can be examined by suggesting syntactic relevance principles and inspecting if the theorems of a logic abide to them. In this paper we want to suggest that a similar strategy can be employed with connexive logics. To do so, we will suggest some properties that seem to be hinted at in Nelson’s work. Following this strategy will ideally shed some light over the notion of content and will also help make a clear comparison between relevance and connexive logics.

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Acknowledgments

This work was done under the support of the PAPIIT project IN403719 “Intensionality all the way down: a new plan for logical relevance”. Elisángela Ramírez-Cámara, Ricardo Arturo Nicolás-Francisco and Raymundo Morado made extremely useful comments to very early versions of this text. Another ancestor was presented at the CLMPST 2019’s symposium “New Directions in Connexive Logic”. We thank Michèle Friend, Hitoshi Omori, Andrew Tedder and Heinrich Wansing for their comments, questions and suggestions. Finally, two anonymous referees for this journal deserve special thanks for their comments, which helped us in improving the typescript.

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Correspondence to Luis Estrada-González.

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Estrada-González, L., Tanús-Pimentel, C.L. Variable Sharing in Connexive Logic. J Philos Logic 50, 1377–1388 (2021). https://doi.org/10.1007/s10992-021-09602-y

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