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Justified True Belief

  • According to Plato, true belief is not enough for knowledge
    • It must be justified
    • Person who is justified is in a position to speak to objections of their belief
      • A lucky guesser will have more trouble defending their belief
  • In order for something to be true, one must not only believe the relevant true proposition, but also have justification for doing so
  • SS knows that PP if any only if:
    • PP is true
    • SS believes that PP is true
    • SS is justified in believing that PP is true

Philosophy