Chapter

A Common Logic?

Geoffrey Lloyd

in Ancient Worlds, Modern Reflections

Published in print February 2004 | ISBN: 9780199270163
Published online April 2005 | e-ISBN: 9780191602276 | DOI: http://dx.doi.org/10.1093/0199270163.003.0004
A Common Logic?

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Different systems of formal logic have been developed by philosophers since Aristotle. But the key difference within ancient societies and between them and modern ones lies not in any supposed difference in the formal logic employed or presupposed, but rather in the areas of informal logic and pragmatics, for example, in the variety of informal argument schemata used in rhetoric or in persuasion and in the degree of explicit interest shown in studying them. What have often been interpreted as breaches in the laws of non-contradiction or excluded middle should be seen as challenges to interpretation rather than as the first steps towards the formulation of an alternative formal logic.

Keywords: Aristotle; formal logic; informal logic; persuasion; pragmatics; rhetoric

Chapter.  5641 words. 

Subjects: Ancient Philosophy

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