sabato 28 febbraio 2009

Tutorial #17. Skepticism And "Proof of an External World". Discussion Questions

In Light of Moore's "proof of an external world", try to think at these questions:

  • Is commonsense knowledge unrevisable?
  • How does Moore know that he has hands?
  • Is it relevant whether Moore can prove that he knows that he has two hands?
  • From the premises: “Here is one hand”, and "Here is another," would you be justified to conclude that an external world exists?
  • If you do know you have hands then do you know there are external things? Or, if you don’t know there are external things then do you know you have hands?
  • Should Descartes be satisfied with Moore's proof?
  • What is the logical form of Moore’s argument? What is a proof according to Moore?
  • Do you know anything better than you have hands?
  • Can you know that you have hands without already knowing that there is an external world?
  • Do we have more or less reason to doubt that we know there’s an external world?
  • What’s the strongest skeptical argument?
  • What is the best way to respond to the problem of radical scepticism?

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