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  1.  4
    Al-ʿaql Dans la Tradition Latine du Liber de Causis.Dragos Calma - 2021 - Arabic Sciences and Philosophy 31 (1):127-148.
    RésuméL'article propose une première approche systématique de la tradition manuscrite du Liber de causis, en étudiant à la fois les variantes manuscrites et les difficultés doctrinales suscitées par la translittération de l'arabe al-ʿaql conservée dans la traduction latine. Certains médiévaux l'entendent comme un concept sans équivalent en latin, forgé par des philosophes arabes dont on ignore tout. D'autres médiévaux, qui ont probablement connu une branche différente de la tradition manuscrite du Liber de causis, n'en font aucune mention. En examinant cent (...)
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  2.  3
    Use of the Galaxy as a Tool for Spatial and Temporal Orientation During the Early Islamic Period and Up to the 15th Century.Andreas Eckart - 2021 - Arabic Sciences and Philosophy 31 (1):1-44.
    We study to what extent the Milky Way was used as an orientation tool at the beginning of the Islamic period covering the 8th to the 15th century, with a focus on the first half of that era. We compare the texts of three authors from three different periods and give detailed comments on their astronomical and traditional content. The text of al-Marzūqī summarises the information on the Milky Way put forward by the astronomer and geographer ʾAbū Ḥanīfa al-Dīnawarī. The (...)
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  3.  5
    Note sur l'extraction de la Racine carrée d'un entier chez Ibn al-hayṯam et comparaison avec al-baġdādī.Leïla Hamouda & Yassine Hachaichi - 2021 - Arabic Sciences and Philosophy 31 (1):149-157.
    Dans le cadre des algorithmes numériques introduits et élaborés par les mathématiciens arabes, à partir du ixe siècle, figure l'algorithme de l'extraction de la racine carrée d'un entier naturel. Cet algorithme a été étudié chez plusieurs d'entre eux et surtout bien expliqué par alBaġdādī dans le chapitre « Comment extraire la racine des nombres entiers » de son livre « La complétion du calcul », Al-takmila fī al-ḥisāb 1. Dans ce chapitre, al-Baġdādī expose son travail pédagogiquement en six sections traitant (...)
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  4.  4
    ʾabū Saʿīd Al-Siǧzī and the “Structure of the Orbs,” the Earliest Known Work on Hayʾa.Younes Mahdavi - 2021 - Arabic Sciences and Philosophy 31 (1):45-94.
    ʾAbū Saʿīd al-Siǧzī was a prominent fourth/tenth century astronomer and mathematician who was one of the first contributors to the new genre of ʿilm al-hayʾa. However, little is known about the initial steps taken in the formation of the discipline, or its independence from other astronomical writings and practices. In this paper, I will discuss new findings about Siǧzī’s life to determine details of his biography and a more precise time period for his scientific activities. I then describe, for the (...)
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  5.  5
    Avicenna on Grasping Mathematical Concepts.Mohammad Saleh Zarepour - 2021 - Arabic Sciences and Philosophy 31 (1):95-126.
    According to Avicenna, some of the objects of mathematics exist and some do not. Every existing mathematical object is a non-sensible connotational attribute of a physical object and can be perceived by the faculty of estimation. Non-existing mathematical objects can be represented and perceived by the faculty of imagination through separating and combining parts of the images of existing mathematical objects that are previously perceived by estimation. In any case, even non-existing mathematical objects should be considered as properties of material (...)
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