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7701 | Can a Barber shave all and only those persons who do not shave themselves? [Jacquette] |
Full Idea: The Barber Paradox refers to the non-existent property of being a barber who shaves all and only those persons who do not shave themselves. | |
From: Dale Jacquette (Ontology [2002], Ch. 9) | |
A reaction: [Russell spotted this paradox, and it led to his Theory of Types]. This paradox may throw light on the logic of indexicals. What does "you" mean when I say to myself "you idiot!"? If I can behave as two persons, so can the barber. |