Journal of Philosophical Logic

, Volume 31, Issue 1, pp 77–98

Measuring Inconsistency

  • Kevin Knight

DOI: 10.1023/A:1015015709557

Cite this article as:
Knight, K. Journal of Philosophical Logic (2002) 31: 77. doi:10.1023/A:1015015709557


I provide a method of measuring the inconsistency of a set of sentences – from 1-consistency, corresponding to complete consistency, to 0-consistency, corresponding to the explicit presence of a contradiction. Using this notion to analyze the lottery paradox, one can see that the set of sentences capturing the paradox has a high degree of consistency (assuming, of course, a sufficiently large lottery). The measure of consistency, however, is not limited to paradoxes. I also provide results for general sets of sentences.

inconsistency paraconsistency probability η-consistency 

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Kevin Knight
    • 1
  1. 1.Department of MathematicsUniversity of ManchesterManchesterUK

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