A probabilistic analysis of argument cogency

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Abstract

This paper offers a probabilistic treatment of the conditions for argument cogency as endorsed in informal logic: acceptability, relevance, and sufficiency (RSA). Treating a natural language argument as a reason-claim-complex, our analysis identifies content features of defeasible argument on which the RSA conditions depend, namely: (1) change in the commitment to the reason, (2) the reason’s sensitivity and selectivity to the claim, (3) one’s prior commitment to the claim, and (4) the contextually determined thresholds of acceptability for reasons and for claims. Results contrast with, and may indeed serve to correct, the informal understanding and applications of the RSA criteria concerning their conceptual (in)dependence, their function as update-thresholds, and their status as obligatory rather than permissive norms, but also show how these formal and informal normative approachs can in fact align.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Michigan State University
  • University of Konstanz
  • Slovak Academy of Sciences
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Filosofi

Nyckelord

Originalspråkengelska
Sidor (från-till)1715-1740
TidskriftSynthese
Volym195
Utgåva nummer4
Tidigt onlinedatum2016 dec 30
StatusPublished - 2018
PublikationskategoriForskning
Peer review utfördJa