Classical Logic Is Connexive

Australasian Journal of Logic (2):91-99 (2024)
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Abstract

Connexive logics are based on two ideas: that no statement entails or is entailed by its own negation (this is Aristotle’s thesis) and that no statement entails both something and the negation of this very thing (this is Boethius' thesis). Usually, connexive logics are contra-classical. In this note, I introduce a reading of the connexive theses that makes them compatible with classical logic. According to this reading, the theses in question do not talk about validity alone; rather, they talk in part about (a property related to) the soundness of arguments.

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References found in this work

Strictness and connexivity.Andrea Iacona - 2021 - Inquiry: An Interdisciplinary Journal of Philosophy 64 (10):1024-1037.
Humble Connexivity.Andreas Kapsner - 2019 - Logic and Logical Philosophy 28.
A propositional logic with subjunctive conditionals.R. B. Angell - 1962 - Journal of Symbolic Logic 27 (3):327-343.
Connexive Modal Logic.H. Wansing - 1998 - In Marcus Kracht, Maarten de Rijke, Heinrich Wansing & Michael Zakharyaschev (eds.), Advances in Modal Logic. CSLI Publications. pp. 367-383.

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