Al-Kindi

In Necessary Existence and the Doctrine of Being in Avicenna’s Metaphysics of the Healing Daniel De Haan explicates the central argument of Avicenna’s metaphysical masterpiece. De Haan argues that the most fundamental primary notion in Avicenna’s metaphysics is neither being nor thing but is the necessary ( wājib), which Avicenna employs to demonstrate the existence and true-nature of the divine necessary existence in itself. This conclusion is established through a systematic investigation of how Avicenna’s theory of a demonstrative science is (...) employed in the organization of his metaphysical science into its subject, first principles, and objects of enquiry. The book examines the essential role the first principles as primary notions and primary hypotheses play in the central argument of Avicenna’s metaphysics. (shrink)

Bu tezimizde klasik İslam düşüncesine, Yunan felsefesiyle olan irtibatına, klasik İslam düşüncesinde astronomi ve astroloji alanlarının oluşumu, gelişimi, bu alanlar içerisinde gerçekleşen düşünce üretimi ve astronomi- astrolojinin kozmoloji ile olan ilişkisi ele alınmaya çalışılmıştır. İlk bölümde İslam düşüncesinin ortaya çıkışına ve bu düşünce geleneği içerisinde geniş bir yer tutan astronomi ve astrolojinin ilimler sınıflandırılmasındaki yerlerine Fârâbî ve İbn Sînâ'nın ilimler sınıflandırması çerçevesinde değinilmiştir. İkinci bölümde ise klasik İslam düşüncesinde astronominin ortaya çıkışı, bu gelenekteki gelişmeleri ve önemli gördüğümüz İslam astronomlarından Bîrûnî, (...) İbn Heysem ve Nasîruddîn Tûsî'nin astronomiye katkılarına değinilmiştir. Üçüncü bölümde İslam düşüncesinde astronomi gibi önemi bir yeri olan astrolojinin de ne olduğu, bu düşünce geleneği içerisindeki yeri ve astronomi-astroloji ilişkisini gözeten, astroloji alanında düşünce üreten Kindî, Bîrûnî, Fârâbî ve İhvân-ı Safâ topluluğunun astrolojiye olan bakış açıları üzerinde durulmuştur. Çalışmamızın son bölümünde ise astrolojinin astronomi ve kozmolojiyle olan ilişkisine değinilmiş, modern bilimle birlikte astrolojinin neden bilim dışında kaldığına değinilmiştir. (shrink)

In this study, lexical and terminological meanings of the term “nature” were analyzed and some Peripatetical Islamic philosophers’ opinions about this term were included. A comparison was made between the words “tabiat” and “doğa” which are used in Turkish language to meet the term “nature”. The realm of existence which Peripatetical Islamic philosophers have used “nature” in as a noun was explained. Debate between Ibn Sīnā and Ibn Rushd (Averroes) about the necessity of proving the term “nature” was mentioned. Ibn (...) Sīnā's views on what “nature” portends in terms of being a source of motion and duration in objects were presented in comparison with Aristotle. Later definitions which are made by philosophers for “nature” as a term were presented. Peripatetical Islamic philosophers’ definition of the term “nature” which has a critical role in Islamic philosophy and the way they use it differentiates from that of Aristotle’s. The term “nature” which they especially use to explain every kind of becoming and motion enables to connect all reason to Allah in aspects of etymology. And it is also known that the term “nature” serves as a basis for differentiation between physics and metaphysics. The purpose of this article is to clarify the possible usages of the term “nature” in relation to new theories. (shrink)

What is the function of logic in al-Kindī's corpus? What kind of relation does it have with mathematics? This article tackles these questions by examining al-Kindī's theory of categories as it was presented in his epistle On the Number of Aristotle's Books, from which we can learn about his special attitude towards Aristotle theory of categories and his interpretation, as well. Al-Kindī treats the Categories as a logical book, but in a manner different from that of the classical Aristotelian tradition. (...) He ascribes a special status to the categories Quantity and Quality, whereas the rest of the categories are thought to be no more than different combinations of these two categories with the category Substance. The discussion will pay special attention to the function of the categories of Quantity and Quality as mediators between logic and mathematics. (shrink)

This volume introduces the major classical Arabic philosophers through substantial selections from the key works (many of which appear in translation for the first time here) in each of the fields—including logic, philosophy of science, natural philosophy, metaphysics, ethics, and politics—to which they made significant contributions. -/- An extensive Introduction situating the works within their historical, cultural, and philosophical contexts offers support to students approaching the subject for the first time, as well as to instructors with little or no formal (...) training in Arabic thought. A glossary, select bibliography, and index are also included. (shrink)

This paper studies the first metaphysical theory in Arabic philosophy, that of al-Kindi, as found in "On First Philosophy" and other of his works. Placing these works against the background of translations produced in al-Kindi's circle (the "Theology of Aristotle," which is the Arabic version of Plotinus, and the "Liber de Causis," the Arabic version of Proclus' "Elements of Theology"), it argues that al-Kindi has two conceptions of being: "simple" being, which excludes predication and derives from Neoplatonism, and "complex" being, (...) which is based on Aristotle's notion of substance. At the end of the paper the "simple" notion of being is seen to anticipate in some respects Avicenna's distinction between existence and essence. (shrink)

Ancient Greek philosophers were the first to postulate the possibility of explaining nature in theoretical terms and to initiate attempts at this. With the rise of monotheistic religions of revelation claiming supremacy over human reason and envisaging a new world to come, studies of the natural order of the transient world were widely considered undesirable. Later, in the Middle Ages, the desire for human understanding of nature in terms of reason was revived. This article is concerned with the fundamental reversal (...) of attitudes, from "undesirable" to "desirable", that eventually led into the foundations of modern science. One of the earliest, most ingenious and most interesting personalities involved was Eriugena, a theologian at the Court of Charles the Bald in the 9th century. Though understanding what we call nature is only one of the several aspects of his philosophical work, his line of thought implies a turn into a pro-scientific direction: the natural order is to be understood in abstract terms of "primordial causes"; understanding nature is considered to be the will of God; man encompasses the whole of creation in a physical as well as a mental sense. Basically similar ideas on the reconciliation of scientific rationality and monotheistic religions of revelation were conceived, independently and nearly simultaneously, by the Arab philosopher al-Kindi in Bagdad. Eriugena was more outspoken in his claim that reason is superior to authority. This claim is implicit in the thought of Nicholas of Cusa with his emphasis on human mental creativity as the image of God's creativity; and it is the keynote of Galileo's "Letter to the Grand Duchess Christina" some 800 years later, the manifesto expressing basic attitudes of modern science. (shrink)

The formal study of both astronomy and astrology in later medieval Europe was firmly based in the universities. Instruction in astrology is attested by the presence of an educational board game, known as the ludus astronomorum, in several university-related miscellanies of fifteenth-century English provenance. William Fulke also published an edition of the game a century later , which is attested in a number of Elizabethan libraries. The game serves to rehearse for its players the celestial motions and astrological principles described (...) by Ptolemy. It also employs principles of stellar rays described by al-Kindi in his De radiis stellarum. (shrink)

A set point in the historical time line stands as the medieval period. The medieval period in history was the era in European history – from around the 5th to the 15th century, coming after the fall of the Western Roman Empire, and preceding the start of the early modern era. This historical time period has been long since been the victim of film directors and romantic novelists, which has lead to the common, but false, idea of the medieval period (...) consisting of knights and damsels in distress, wizards and dragons, and castles and battles. Although mainly wrong in most parts and being highly historically inaccurate – some aspects of the dramatic works do play true to the original time period. Certainly within British/English history we have a huge heritage in the medieval world and so it is quite easy to look for how aspects of this period develop through time but still retain relevance for people today. (shrink)