The barbershop paradox was proposed by Lewis Carroll in a three-page essay titled "A Logical Paradox", which appeared in the July 1894 issue of Mind. The name comes from the "ornamental" short story that Carroll uses in the article to illustrate the paradox. It existed previously in several alternative forms in his writing and correspondence, not always involving a barbershop. Carroll described it as illustrating "a very real difficulty in the Theory of Hypotheticals". From the viewpoint of modern logic it is seen not so much as a paradox than as a simple logical error. It is of interest now mainly as an episode in the development of algebraic logical methods when these were not so widely understood (even among logicians), although the problem continues to be discussed in relation to theor
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| - مفارقة صالون الحلاقة (ar)
- Barbershop paradox (en)
- Paradoks tukang cukur (in)
- Paradoxe du coiffeur (fr)
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| - مفارقة صالون الحلاقة اقترحت من قبل لويس كارول في مقالة تحتوي على ثلاث صفحات بمسمى «مفارقة منطقية» حيث ظهرت في يوليو 1894 مسألة العقل. الأسم يأتي من 'oranmental' قصة قصيرة استخدمها كارول في توضيح المفارقة (رغم أنها ظهرت عدة مرات في مصطلحات تجريدية في مراسلة وكتاباته قبل ان تنشر القصة) كارول قال انها فسرت «صعوبة حقيقية في نظرية الافتراضات» في ذلك الوقت. المنطقيين الحديثين لم يعتبروه كمفارقة بل كخطأ منطقي قام به كارول. (ar)
- Paradoks tukang cukur dicetuskan oleh Lewis Carroll dalam esai tiga halaman berjudul "A Logical Paradox", yang muncul dalam edisi Juli 1894 dari jurnal . Namanya berasal dari cerpen "sisipan" yang dipakai oleh Carroll untuk menggambarkan paradoks tersebut (meskipun cerita tersebut muncul beberapa kali dengan cara lebih abstrak pada tulisan-tulisannya sebelum cerita tersebut diterbitkan). Para logikawan modern tak akan menganggapnya sebagai sebuah paradoks namun sebagai kesalahan logika. (in)
- Le paradoxe du coiffeur (barbershop paradox) est un paralogisme présenté par Lewis Carroll dans une nouvelle intitulée A Logical Paradox, parue dans l'édition de juillet 1894 de la revue Mind. Ce paradoxe illustre la difficulté d'appréhender l'implication logique. On en trouve une traduction en français dans le recueil Logique sans peine en 1966. (fr)
- The barbershop paradox was proposed by Lewis Carroll in a three-page essay titled "A Logical Paradox", which appeared in the July 1894 issue of Mind. The name comes from the "ornamental" short story that Carroll uses in the article to illustrate the paradox. It existed previously in several alternative forms in his writing and correspondence, not always involving a barbershop. Carroll described it as illustrating "a very real difficulty in the Theory of Hypotheticals". From the viewpoint of modern logic it is seen not so much as a paradox than as a simple logical error. It is of interest now mainly as an episode in the development of algebraic logical methods when these were not so widely understood (even among logicians), although the problem continues to be discussed in relation to theor (en)
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| - مفارقة صالون الحلاقة اقترحت من قبل لويس كارول في مقالة تحتوي على ثلاث صفحات بمسمى «مفارقة منطقية» حيث ظهرت في يوليو 1894 مسألة العقل. الأسم يأتي من 'oranmental' قصة قصيرة استخدمها كارول في توضيح المفارقة (رغم أنها ظهرت عدة مرات في مصطلحات تجريدية في مراسلة وكتاباته قبل ان تنشر القصة) كارول قال انها فسرت «صعوبة حقيقية في نظرية الافتراضات» في ذلك الوقت. المنطقيين الحديثين لم يعتبروه كمفارقة بل كخطأ منطقي قام به كارول. (ar)
- The barbershop paradox was proposed by Lewis Carroll in a three-page essay titled "A Logical Paradox", which appeared in the July 1894 issue of Mind. The name comes from the "ornamental" short story that Carroll uses in the article to illustrate the paradox. It existed previously in several alternative forms in his writing and correspondence, not always involving a barbershop. Carroll described it as illustrating "a very real difficulty in the Theory of Hypotheticals". From the viewpoint of modern logic it is seen not so much as a paradox than as a simple logical error. It is of interest now mainly as an episode in the development of algebraic logical methods when these were not so widely understood (even among logicians), although the problem continues to be discussed in relation to theories of implication and modal logic. (en)
- Paradoks tukang cukur dicetuskan oleh Lewis Carroll dalam esai tiga halaman berjudul "A Logical Paradox", yang muncul dalam edisi Juli 1894 dari jurnal . Namanya berasal dari cerpen "sisipan" yang dipakai oleh Carroll untuk menggambarkan paradoks tersebut (meskipun cerita tersebut muncul beberapa kali dengan cara lebih abstrak pada tulisan-tulisannya sebelum cerita tersebut diterbitkan). Para logikawan modern tak akan menganggapnya sebagai sebuah paradoks namun sebagai kesalahan logika. (in)
- Le paradoxe du coiffeur (barbershop paradox) est un paralogisme présenté par Lewis Carroll dans une nouvelle intitulée A Logical Paradox, parue dans l'édition de juillet 1894 de la revue Mind. Ce paradoxe illustre la difficulté d'appréhender l'implication logique. On en trouve une traduction en français dans le recueil Logique sans peine en 1966. (fr)
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