Ahmad ibn Muhammad ibn al-Sari Ibn al-Salah

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Najm al-Dīn Abū al-Futūḥ Aḥmad ibn Muḥammad ibn al-Sarī, called Ibn al-Ṣalāḥ (died 1154), was a scholar who wrote critical commentaries on logic and mathematics. In total at least 17 works by Ibn al-Ṣalāh are extant today.[1]

Ibn al-Ṣalāḥ was born either at Samsat or Hamadan. He trained as a physician.[2] He served as court physician to Ilghazi (r. 1107–1122), the Artuqid ruler of Mardin.[3] He ended his life in Damascus. He is known for his critique of errors in the transmission of Ptolemy's Almagest, for which he examined one Syriac and four Arabic manuscripts.[2] He wrote a Treatise on Projection, commentaries on Galen and eight tracts on Euclid's Elements.[3]

Notes[edit]

  1. ^ Hullmeine, Paul (September 2022). "Correcting Ptolemy and Aristotle: Ibn al-Ṣalāḥ on Mistkaes in the Almagest, On the Heavens, and Posterior Analytics". Arabic Sciences and Philosophy. 32 (2): 201–246. doi:10.1017/S0957423922000030.
  2. ^ a b Paul Kunitzsch, "Ibn al-Ṣalāḥ", in Thomas Hockey et al. (eds.), Biographical Encyclopedia of Astronomers, 2nd ed. (Springer Reference, 2007), pp. 1060–1061.
  3. ^ a b Richard Lorch, "Ibn al-Ṣalāḥ's Treatise on Projection: A Preliminary Survey", in Menso Folkerts and Richard Lorch (eds.), Sic Itur ad Astra: Studien zur Geschichte der Mathematik und Naturwissenschaften (Harrassowitz, 2000), pp. 401–408.

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