Barber paradox
The barber paradox is a puzzle derived from Russell's paradox. It was used by Bertrand Russell as an illustration of the paradox, though he attributes it to an unnamed person who suggested it to him. The puzzle shows that an apparently plausible scenario is logically impossible. Specifically, it describes a barber who is defined such that he both shaves himself and does not shave himself.
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Barber paradox
The barber paradox is a puzzle derived from Russell's paradox. It was used by Bertrand Russell as an illustration of the paradox, though he attributes it to an unnamed person who suggested it to him. The puzzle shows that an apparently plausible scenario is logically impossible. Specifically, it describes a barber who is defined such that he both shaves himself and does not shave himself.
has abstract
Il paradosso del barbiere è un ...... mia può essere enunciata così:
@it
Le paradoxe du barbier est une ...... » ou de « pseudo-antinomie ».
@fr
O Paradoxo do barbeiro é um qu ...... ível é logicamente impossível.
@pt
The barber paradox is a puzzle ...... lf and does not shave himself.
@en
مفارقة الحلاق هي تساؤل منطقي ل ...... المتعلقة بالمجموعات الرياضية.
@ar
床屋のパラドックス（とこやのパラドックス）は、数理論理学と集合論における重要なパラドックスである。
@ja
理髮師悖論（Barber paradox）是羅素用来比喻羅素 ...... 時，羅素悖論的出現促使數學家認識到將數學基礎公理化的必要性。
@zh
이발사의 역설(Barber paradox, 바버 파라독 ...... 듯한 시나리오가 논리적으로 불가능하다는 것을 보여준다.
@ko
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1,025,207,660
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comment
Il paradosso del barbiere è un ...... mia può essere enunciata così:
@it
Le paradoxe du barbier est une ...... » ou de « pseudo-antinomie ».
@fr
O Paradoxo do barbeiro é um qu ...... ível é logicamente impossível.
@pt
The barber paradox is a puzzle ...... lf and does not shave himself.
@en
مفارقة الحلاق هي تساؤل منطقي ل ...... المتعلقة بالمجموعات الرياضية.
@ar
床屋のパラドックス（とこやのパラドックス）は、数理論理学と集合論における重要なパラドックスである。
@ja
理髮師悖論（Barber paradox）是羅素用来比喻羅素 ...... 時，羅素悖論的出現促使數學家認識到將數學基礎公理化的必要性。
@zh
이발사의 역설(Barber paradox, 바버 파라독 ...... 듯한 시나리오가 논리적으로 불가능하다는 것을 보여준다.
@ko
label
Barber paradox
@en
Barbier-Paradoxon
@de
Paradosso del barbiere
@it
Paradoxe du barbier
@fr
Paradoxo do barbeiro
@pt
مفارقة الحلاق
@ar
床屋のパラドックス
@ja
理发师悖论
@zh
이발사의 역설
@ko