Erkenntnis 35 (1-3):391 - 437 (1991)
This paper presents an outline of a new theory of relevant deduction which arose from the purpose of solving paradoxes in various fields of analytic philosophy. In distinction to relevance logics, this approach does not replace classical logic by a new one, but distinguishes between relevance and validity. It is argued that irrelevant arguments are, although formally valid, nonsensical and even harmful in practical applications. The basic idea is this: a valid deduction is relevant iff no subformula of the conclusion is replaceable on some of its occurrences by any other formula salva validitate of the deduction. The paper first motivates the approach by showing that four paradoxes seemingly very distant from each other have a common source. Then the exact definition of relevant deduction is given and its logical properties are investigated. An extension to relevance of premises is discussed. Finally the paper presents an overview of its applications in philosophy of science, ethics, cognitive psychology and artificial intelligence.
|Keywords||No keywords specified (fix it)|
|Categories||categorize this paper)|
References found in this work BETA
No references found.
Citations of this work BETA
Zwart and Franssen's Impossibility Theorem Holds for Possible-World-Accounts but Not for Consequence-Accounts to Verisimilitude.Gerhard Schurz & Paul Weingartner - 2010 - Synthese 172 (3):415 - 436.
Verisimilitude and Belief Revision. With a Focus on the Relevant Element Account.Gerhard Schurz - 2011 - Erkenntnis 75 (2):203-221.
Bayesian Pseudo-Confirmation, Use-Novelty, and Genuine Confirmation.Gerhard Schurz - 2014 - Studies in History and Philosophy of Science Part A 45 (1):87-96.
Similar books and articles
Deduction Theorems Within RM and its Extensions.J. Czelakowski & W. Dziobiak - 1999 - Journal of Symbolic Logic 64 (1):279-290.
Relevant Deduction and Hypothetico-Deductivism: A Reply to Gemes. [REVIEW]Gerhard Schurz - 1994 - Erkenntnis 41 (2):183 - 188.
Some Formal Considerations on Gabbay's Restart Rule in Natural Deduction and Goal-Directed Reasoning.Michael Gabbay - unknown
Deduction Theorems for Weak Implicational Logics.M. W. Bunder - 1982 - Studia Logica 41 (2-3):95 - 108.
The Strong Proof From Hypotheses and Conditionals: Some Theorems of Deduction for Relevant Systems.E. A. Sidorenko - 1983 - Studia Logica 42 (2-3):165 - 171.
Relational Proof System for Relevant Logics.Ewa Orlowska - 1992 - Journal of Symbolic Logic 57 (4):1425-1440.
Rules in Relevant Logic — II: Formula Representation.Ross T. Brady - 1993 - Studia Logica 52 (4):565 - 585.
Added to index2009-01-28
Total downloads35 ( #143,417 of 2,152,626 )
Recent downloads (6 months)2 ( #281,037 of 2,152,626 )
How can I increase my downloads?