Socratic proofs

Journal of Philosophical Logic 33 (3):299-326 (2004)
Our aim is to express in exact terms the old idea of solving problems by pure questioning. We consider the problem of derivability: "Is A derivable from Δ by classical propositional logic?". We develop a calculus of questions E*; a proof (called a Socratic proof) is a sequence of questions ending with a question whose affirmative answer is, in a sense, evident. The calculus is sound and complete with respect to classical propositional logic. A Socratic proof in E* can be transformed into a Gentzen-style proof in some sequent calculi. Next we develop a calculus of questions E**; Socratic proofs in E** can be transformed into analytic tableaux. We show that Socratic proofs can be grounded in Inferential Erotetic Logic. After a slight modification, the analyzed systems can also be viewed as hypersequent calculi.
Keywords Philosophy
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DOI 10.1023/B:LOGI.0000031374.60945.6e
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References found in this work BETA
Raymond M. Smullyan (1968). First-Order Logic. New York [Etc.]Springer-Verlag.

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Citations of this work BETA
Tomasz F. Skura (2005). Intuitionistic Socratic Procedures. Journal of Applied Non-Classical Logics 15 (4):453-464.

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