Open main menu

Wikipedia β

Abu Mansur al-Baghdadi

  (Redirected from Ibn Tahir al-Baghdadi)

Abū Manṣūr ʿAbd al-Qāhir ibn Ṭāhir bin Muḥammad bin ʿAbd Allāh al-Tamīmī al-Shāfiʿī al-Baghdādī (Arabic: أبو منصور عبدالقاهر ابن طاهر بن محمد بن عبدالله التميمي الشافعي البغدادي‎) also called Machometus Bagdedinus in Latin, was an Arab[4] Shafi'i scholar, Imam in fundamentals of Islam (Usul), heresiologist and mathematician.

'Abd al-Qahir al-Baghdadi
Born c. 980
Died 1037 (429 AH)[1]
(aged c. 56–57)
Occupation Mathematician
Religion Islam
Denomination Sunni
Jurisprudence Shafi'i[1]
Creed Ash'ari[2][3]


Early life and educationEdit

'Abd al-Qahir al-Baghdadi was born and raised in Baghdad.[5] He was a member of the Arab tribe of Banu Tamim.[6] He received his education in Nishabur and subsequently taught 17 subjects, including law, usul, arithmetic, law of inheritance and theology.[1] Most of the scholars of Khurasan were his pupils.[1] Ibn 'Asakir writes that Abu Mansur met the companions of the companions of Imam al-Ashari and acquired knowledge from them.[7]


De superficierum divisionibus, 1570

'Abd al-Qahir al-Baghdadi wrote several books including Usul al-Din, a systematic treatise, beginning with the nature of knowledge, creation, how the Creator is known, His attributes, etc.... and al-Farq bayn al-Firaq which takes each sect separately, judges all from the standpoint of orthodoxy and condemns all which deviate from the straight path.[1] Both books were major works on the beliefs of Ahl al-Sunna.[5]

He also wrote the treatise al-Takmila fi'l-Hisab which contains results in number theory, and comments on works by al-Khwarizmi which are now lost. His work De superficierum divizionibus liber contains the only trace of Euclid's work in the Latin tradition. The first edition was printed in 1570, edited by John Dee and Federico Commandino.[8]

See alsoEdit


  1. ^ a b c d e f g Gibb, H. A. R.; Kramers, J. H.; Lévi-Provençal, E.; Schacht, J.; Lewis, B.; Pellat, Ch., eds. (1960). The Encyclopaedia of Islam, New Edition, Volume I: A–B. Leiden: E. J. Brill. p. 909. ISBN 90-04-08114-3. 
  2. ^ Anthony, Sean (2011). The Caliph and the Heretic: Ibn Sabaʾ and the Origins of Shīʿism. Brill. p. 72. ISBN 9004216065. 
  3. ^ Adang, Camilla; Fierro, Maribel; Schmidtke, Sabine (2012). Ibn Hazm of Cordoba: The Life and Works of a Controversial Thinker (Handbook of Oriental Studies) (Handbook of Oriental Studies: Section 1; The Near and Middle East). Leiden, Netherlands: Brill Academic Publishers. p. 387. ISBN 978-90-04-23424-6. 
  4. ^ "Al-Baghdadi biography". 
  5. ^ a b Keller, Nuh Ha Mim (1997). Reliance of the Traveller. A classic manual of Islamic Sacred Law. Beltsville, Maryland: Amana Publications. p. 1021. ISBN 0915957728. 
  6. ^ "Al-Baghdadi biography". 
  7. ^ McCarthy, Richard J. (1953). The Theology of Al-Ashari. Imprimerie Catholique. p. 179. 
  8. ^ "La civiltà islamica: antiche e nuove tradizioni in matematica. La rinascita degli studi geometrici nel mondo latino in Sotira della Scienza (2002)". 

External linksEdit