The Barber paradox is a puzzle derived from Russell's paradox. It was used by Bertrand Russell himself as an illustration of the paradox, though he attributes it to an unnamed person who suggested it to him. It shows that an apparently plausible scenario is logically impossible.
Read more about Barber Paradox: The Paradox, History, In Prolog, In First-order Logic, In Literature, Multiple Barbers, Non-paradoxical Variations, In Music
Famous quotes containing the words barber and/or paradox:
“The best interviews—like the best biographies—should sing the strangeness and variety of the human race.”
—Lynn Barber (b. 1944)
“The conclusion suggested by these arguments might be called the paradox of theorizing. It asserts that if the terms and the general principles of a scientific theory serve their purpose, i. e., if they establish the definite connections among observable phenomena, then they can be dispensed with since any chain of laws and interpretive statements establishing such a connection should then be replaceable by a law which directly links observational antecedents to observational consequents.”
—C.G. (Carl Gustav)