Nozick agrees that the Gettier counterexamples to the JTB analysis of knowledge are cases where someone has a JTB but does not know. What is his explanation of what has gone wrong in those cases? Specifically what conditions in Nozick’s account of knowledge are not satisfied?

  • Is it his counterfactual statements? Apr 1, 2012 at 20:03
  • What does JTB mean?
    – Ron Maimon
    Apr 1, 2012 at 22:51
  • 3
    JTB = "Justifed True Belief"
    – Rex Kerr
    Apr 2, 2012 at 1:27

1 Answer 1


Yes I believe it is his counterfactual statements.

One’s true belief that p is knowledge if and only if the following two conditions hold:

  • if p were not the case, one would not believe that p,
  • and if p were the case, one would believe that p.

I've only just started to research it myself, but this might help: http://www.iep.utm.edu/epis-clo/#SH3b

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