3rd February 2006, 04:07 PM
Fierce Vowelless One
Join Date: Apr 2003
Originally Posted by chrispenycate
Double negative: suppose you ask the one who is incorrigibly truthful. He tells you the truth, that the other guy would tell you the wrong door, so you go through the other one.
Now suppose you choose the other one - he'll lie to you, and tell you the wrong door, not the one the truthful guy would have said, and you go through the other door, and you're still right. See?
Nope. Still makes no sense to me. How do you know which one is the truthful one?