Logic and dialectic

Formal scientists have attempted to combine formal logic (the science of deductively valid inferences or of logical truths) and dialectic (a form of reasoning based upon dialogue of arguments and counter-arguments) through formalisation of dialectic. These attempts include pre-formal and partially formal treatises on argument and dialectic, systems based on defeasible reasoning, and systems based on game semantics and dialogical logic.

## Contents

* 1 History
* 2 Defeasibility
* 3 Dialog games
* 4 See also
* 5 References

## History

Since the late 20th century, European and American logicians have attempted to provide mathematical foundations for dialectic through formalisation,[1]: 201–372 although logic has been related to dialectic since ancient times.[1]: 51–140 There have been pre-formal and partially-formal treatises on argument and dialectic, from authors such as Stephen Toulmin (The Uses of Argument, 1958),[2][3][1]: 203–256 Nicholas Rescher (Dialectics: A Controversy-Oriented Approach to the Theory of Knowledge, 1977),[4][5][1]: 330–336 and Frans H. van Eemeren and Rob Grootendorst (pragma-dialectics, 1980s).[1]: 517–614 One can include works of the communities of informal logic and paraconsistent logic.[1]: 373–424

## Defeasibility

Building on theories of defeasible reasoning (see John L. Pollock), systems have been built that define well-formedness of arguments, rules governing the process of introducing arguments based on fixed assumptions, and rules for shifting burden.[1]: 615–675 Many of these logics appear in the special area of artificial intelligence and law, though the computer scientists' interest in formalizing dialectic originates in a desire to build decision support and computer-supported collaborative work systems.[6]

## Dialog games

Main articles: Game semantics and Philosophy:Dialogical logic

Dialectic itself can be formalised as moves in a game, where an advocate for the truth of a proposition and an opponent argue.[1]: 301–372 Such games can provide a semantics of logic, one that is very general in applicability.[1]: 314

## See also

* Argumentation framework
* Argumentation theory
* Logic of argumentation

## References

1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Eemeren, Frans H. van; Garssen, Bart; Krabbe, Erik C. W.; Snoeck Henkemans, A. Francisca; Verheij, Bart; Wagemans, Jean H. M. (2014). Handbook of argumentation theory. New York: Springer-Verlag. doi:10.1007/978-90-481-9473-5. ISBN 9789048194728. OCLC 871004444.
2. ↑ Toulmin, Stephen (2003) [1958]. The uses of argument (Updated ed.). Cambridge, UK; New York: Cambridge University Press. doi:10.1017/CBO9780511840005. ISBN 978-0521827485. OCLC 51607421.
3. ↑ Hitchcock, David; Verheij, Bart, eds (2006). Arguing on the Toulmin model: new essays in argument analysis and evaluation. Argumentation library. 10. Dordrecht: Springer-Verlag. doi:10.1007/978-1-4020-4938-5. ISBN 978-1402049378. OCLC 82229075.
4. ↑ Hetherington, Stephen (2006). "Nicholas Rescher: Philosophical Dialectics". Notre Dame Philosophical Reviews (2006.07.16). https://ndpr.nd.edu/news/25075-philosophical-dialectics-an-essay-on-metaphilosophy/.
5. ↑ Jacquette, Dale, ed (2009). Reason, Method, and Value: A Reader on the Philosophy of Nicholas Rescher. Frankfurt: Ontos Verlag. doi:10.1515/9783110329056. ISBN 9783110329056. https://books.google.com/books?id=T65moyMMioYC.
6. ↑ For surveys of work in this area see, for example: Chesñevar, Carlos Iván; Maguitman, Ana Gabriela; Loui, Ronald Prescott (December 2000). "Logical models of argument". ACM Computing Surveys 32 (4): 337–383. doi:10.1145/371578.371581. And: Prakken, Henry; Vreeswijk, Gerard (2005). "Logics for defeasible argumentation". in Gabbay, Dov M.; Guenthner, Franz. Handbook of philosophical logic. 4 (2nd ed.). Dordrecht; Boston: Kluwer Academic Publishers. pp. 219–318. doi:10.1007/978-94-017-0456-4_3. ISBN 9789048158775.

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