Abstract
Informal logic is a new sub-discipline of philosophy, roughly definable as the philosophy of argument. Contributors have challenged the traditional concept of an argument as a premiss-conclusion complex, in favour of speech-act, functional and dialogical conceptions; they have identified as additional components warrants, modal qualifiers, rebuttals, and a dialectical tier. They have objected that “soundness” is neither necessary nor sufficient for a good argument. Alternative proposals include acceptability, relevance and sufficiency of the premisses; conformity to a valid argument schema; and conformity to rules for discussion aimed at rational resolution of a dispute. Informal logic is a significant part of philosophy.
Bibliographical note: This chapter was first published in Informal Logic 20 (2000), 129–138. An earlier version was presented at the 20th World Congress of Philosophy in Boston, Massachusetts in August 1998.
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Hitchcock, D. (2017). The Significance of Informal Logic for Philosophy. In: On Reasoning and Argument. Argumentation Library, vol 30. Springer, Cham. https://doi.org/10.1007/978-3-319-53562-3_28
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