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On degrees of justification

Betz, Gregor (2011) On degrees of justification. [Published Article]

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Abstract

This paper gives an explication of our intuitive notion of strength of justification in a controversial debate. It defines a thesis’ degree of justification within the theory of dialectical structures as the ratio of coherently adoptable positions according to which that thesis is true over all coherently adoptable positions. Broadening this definition, the notion of conditional degree of justification, i.e. degree of partial entailment, is introduced. Thus defined degrees of justification correspond to our pre-theoretic intuitions in the sense that supporting and defending a thesis t increases, whereas attacking it decreases, t’s degree of justification. Moreover, it is shown that (conditional) degrees of justification are (conditional) probabilities. Eventually, the paper explains that it is rational to believe theses with a high degree of justification inasmuch as this strengthens the robustness of one’s position.


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Item Type: Published Article
Keywords: degree of justification, partial entailment, argumentation, robustness
Subjects: General Issues > Confirmation/Induction
Depositing User: Gregor Betz
Date Deposited: 01 Oct 2011 10:12
Last Modified: 01 Oct 2011 10:12
Item ID: 8820
Journal or Publication Title: Erkenntnis
Publisher: Springer
Official URL: http://www.springerlink.com/content/y130883577p275...
URI: http://philsci-archive.pitt.edu/id/eprint/8820

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