Difference-Making Conditionals and Connexivity

Rott, Hans (2023) Difference-Making Conditionals and Connexivity. STUDIA LOGICA. ISSN 0039-3215, 1572-8730

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Abstract

Today there is a wealth of fascinating studies of connexive logical systems. But sometimes it looks as if connexive logic is still in search of a convincing interpretation that explains in intuitive terms why the connexive principles should be valid. In this paper I argue that difference-making conditionals as presented in Rott (Review of Symbolic Logic 15, 2022) offer one principled way of interpreting connexive principles. From a philosophical point of view, the idea of difference-making demands full, unrestricted connexivity, because neither logical truths nor contradictions or other absurdities can ever 'make a difference' (i.e., be relevantly connected) to anything. However, difference-making conditionals have so far been only partially connexive. I show how the existing analysis of difference-making conditionals can be reshaped to obtain full connexivity. The classical AGM belief revision model is replaced by a conceivability-limited revision model that serves as the semantic base for the analysis. The key point of the latter is that the agent should never accept any absurdities.

Item Type: Article
Uncontrolled Keywords: Conditionals; Conditional logic; Connexive logic; Belief revision; Ramsey test; Difference-making; Relevance; Contingency; Aristotle; Boethius; Abelard
Subjects: 100 Philosophy & psychology > 100 Philosophy
Divisions: Philosophy, Art History, History, and Humanities > Institut für Philosophie > Lehrstuhl für Theoretische Philosophie (Prof. Dr. phil Hans Rott)
Depositing User: Dr. Gernot Deinzer
Date Deposited: 22 Feb 2024 07:40
Last Modified: 22 Feb 2024 07:40
URI: https://pred.uni-regensburg.de/id/eprint/59012

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