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.
Gist of Idea
Can a Barber shave all and only those persons who do not shave themselves?
Source
Dale Jacquette (Ontology [2002], Ch. 9)
Book Reference
Jacquette,Dale: 'Ontology' [Acumen 2002], p.219
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.