Recently, in ‘An inquiry on Fakhr al-Dīn Rāzī’s authorship of Al-manṭiq al-kabι¯r (MS Aḥmad iii, no. 3401)’, we refuted the quite common view among historians of Arabic logic as to attribute Al-manṭiq al-kabι¯r (Major [book on] logic) to Fakhr al-dīn Rāzī; however, in that paper, we could not identify the real author of the book. In this paper, we try to show that Al-manṭiq al-kabι¯r was written by Burhān al-dīn Nasafī (1203–1288), who authored another book, Sharḥ Asās al-kiyāsa (...) whose logical part is very similar to Al-manṭiq al-kabι¯r in the following significant features: the titles of chapters and sections, the style of writing, some technical as well as some non-technical terms, many sentences word by word. None of these features we find in any other Arabic logical work. So, Al-manṭiq al-kabι¯r and Sharḥ Asās al-kiyāsa are so close to each other that we might most possibly identify the authors of the books as the same scholar, i.e. Burhān al-dīn Nasafī. Fortunately, this has been verified recently by two manuscripts of a medieval Arabic logical book. (shrink)

The post-classical (or post-Avicennan, post-Rāzian) genre of the “protocols for dialectical inquiry and disputation” (ādāb al-baḥth wa-l-munāẓara) has its more proximate origins in the famed Risāla of Shams al-Dīn al-Samarqandī (d. 722/1322). The greater part of his conceptions and methodology, however, consists in a streamlining and universalizing of the more strictly juristic dialectic (jadal / khilāf) of his teacher Burhān al-Dīn al-Nasafī (d. 687/1288); and this in turn draws on the highly logicized dialectic of Rukn al-Dīn al-ʿAmīdī (d. (...) 615/1218) and his teacher Raḍī al-Dīn al-Nīsābūrī (d. 617/1220). At the heart of methods in this lineage, and carried forward by al-Samarqandī into the universal ādāb al-baḥth, are three truth-preserving logical relationships critical to the truth-seeking enterprise of dialectic: entailment (talāzum / mulāzama), mutual negation or exclusion (tanāfin / munāfā), and causal concomitance (dawarān). The practical elaboration of these relations reveals a logic in action—a premodern dialogical logic for living disputation praxis. In fact, so critical were these to the dialectical enterprise that al-Samarqandī devoted a specialized treatise entirely to summarizing their defining features and rules, aptly naming it the ʿAyn al-Naẓar, or “Wellspring of Rational Investigation.” In this article, and drawing upon a recently published digital critical edition, I will present an analytical outline of these core logical relations as presented in the ʿAyn al-Naẓar. Then I will address a number of points of interest in this text, grouped under six themes: the potential for cross-disciplinary advancement; notions in discursive development; significant or uniquely contributive formulations; peculiarities of content; signs of an evolving, universalist agenda; and evidence that the ʿAyn al-Naẓar was designed as an aide-mémoire for the active disputant. (shrink)

The post-classical genre of the “protocols for dialectical inquiry and disputation” has its more proximate origins in the famed Risāla of Shams al-Dīn al-Samarqandī. The greater part of his conceptions and methodology, however, consists in a streamlining and universalizing of the more strictly juristic dialectic of his teacher Burhān al-Dīn al-Nasafī ; and this in turn draws on the highly logicized dialectic of Rukn al-Dīn al-ʿAmīdī and his teacher Raḍī al-Dīn al-Nīsābūrī. At the heart of methods in this (...) lineage, and carried forward by al-Samarqandī into the universal ādāb al-baḥth, are three truth-preserving logical relationships critical to the truth-seeking enterprise of dialectic: entailment, mutual negation or exclusion, and causal concomitance. The practical elaboration of these relations reveals a logic in action—a premodern dialogical logic for living disputation praxis. In fact, so critical were these to the dialectical enterprise that al-Samarqandī devoted a specialized treatise entirely to summarizing their defining features and rules, aptly naming it the ʿAyn al-Naẓar, or “Wellspring of Rational Investigation.” In this article, and drawing upon a recently published digital critical edition, I will present an analytical outline of these core logical relations as presented in the ʿAyn al-Naẓar. Then I will address a number of points of interest in this text, grouped under six themes: the potential for cross-disciplinary advancement; notions in discursive development; significant or uniquely contributive formulations; peculiarities of content; signs of an evolving, universalist agenda; and evidence that the ʿAyn al-Naẓar was designed as an aide-mémoire for the active disputant. (shrink)

Ḥanafī jurist Burhān al-Dīn al-Nasafī is one of the most prominent names in the history of the ʿilm al-naẓar’ (Islamic Disputation Theory) particularly due to his seminal work entitled al-Fuṣūl. We have located a manuscript which we will call an Opponent-al-Fuṣūl written by a Shāfiʿī scholar. This manuscript is titled al-Risāla fī qawāʿid ʿilm al-naẓar and it highlights the importance of al-Nasafī’s al-Fuṣūl. The scribe of the manuscript attributes this Opponent-al-Fuṣūl to the famous logician Najm al-Dīn al-Kātibī. (...) Although no mention of such a book belonging to al-Kātibī has been discovered thus far, in this article we will try to demonstrate that the book does indeed belong to him. In addition, we will undertake a comparison of both works, al-Fuṣūl and the Opponent-al-Fuṣūl, with a particular focus on the concepts of talāzum (implication), tanāfī (incompatibility) and dawarān (concomitance). A critical edition of the Opponent-al-Fuṣūl is appended to the article. (shrink)

Ḥanafī jurist Burhān al-Dīn al-Nasafī is one of the most prominent names in the history of the ʿilm al-naẓar’ particularly due to his seminal work entitled al-Fuṣūl. We have located a manuscript which we will call an Opponent-al-Fuṣūl written by a Shāfiʿī scholar. This manuscript is titled al-Risāla fī qawāʿid ʿilm al-naẓar and it highlights the importance of al-Nasafī’s al-Fuṣūl. The scribe of the manuscript attributes this Opponent-al-Fuṣūl to the famous logician Najm al-Dīn al-Kātibī. Although no mention (...) of such a book belonging to al-Kātibī has been discovered thus far, in this article we will try to demonstrate that the book does indeed belong to him. In addition, we will undertake a comparison of both works, al-Fuṣūl and the Opponent-al-Fuṣūl, with a particular focus on the concepts of talāzum, tanāfī and dawarān. A critical edition of the Opponent-al-Fuṣūl is appended to the article. (shrink)

Ḥanafī jurist Burhān al-Dīn al-Nasafī is one of the most prominent names in the history of the ʿilm al-naẓar’ (Islamic Disputation Theory) particularly due to his seminal work entitled al-Fuṣūl. We have located a manuscript which we will call an Opponent-al-Fuṣūl written by a Shāfiʿī scholar. This manuscript is titled al-Risāla fī qawāʿid ʿilm al-naẓar and it highlights the importance of al-Nasafī’s al-Fuṣūl. The scribe of the manuscript attributes this Opponent-al-Fuṣūl to the famous logician Najm al-Dīn al-Kātibī. (...) Although no mention of such a book belonging to al-Kātibī has been discovered thus far, in this article we will try to demonstrate that the book does indeed belong to him. In addition, we will undertake a comparison of both works, al-Fuṣūl and the Opponent-al-Fuṣūl, with a particular focus on the concepts of talāzum (implication), tanāfī (incompatibility) and dawarān (concomitance). A critical edition of the Opponent-al-Fuṣūl is appended to the article. (shrink)

Çalışmanın konusunu Seyyid Burhaneddin’de ahlakî arınmanın incelenmesi teşkil etmektedir. İnceleme üç temel soru çerçevesinde yürütülür. İlk soru, kirlerin neler olduğu ve nelerin bu kirlerden arındırılması gerektiğine yöneliktir. Bu bağlamda Seyyid Burhaneddin’in beden, dünya, nefs, gönül, can, ruh vb. hususlarla alakalı görüşleri ele alınmaktadır. Diğer bir soru ise söz konusu arınmanın nasıl gerçekleştirileceğine ilişkindir ki Seyyid Burhaneddin’in mücahede, riyazat, söz, bilgi gibi kavramlara dair görüşleri doğrultusunda bir yanıt verilmeye çalışılır. Arınmanın ve buna binaen yetkinleşmenin sonucu kişinin ulaşacağı mertebe ne olacaktır? Son (...) olarak da bu soru çerçevesinde Seyyid Burhaneddin’in düşüncelerinin değerlendirilmesine çalışılmakta ve insanın beka ve ebediyete kavuşması ve namütenahi bir biçimde Allah’ta seyredişi ele alınmaktadır. (shrink)

Introduces young readers to Ibn Sina, telling his story as he might tell it himself. It provides a fascinating glimpse into the life of this philosopher, scientist and physician who was one of the greatest thinkers of his time.

In this work the Persian and English texts are edited and published together for the first time. This is Tusi’s major Ismaili work and the most important primary source on Ismaili doctrines during the Alamut period.

We argue that there is an incompatibility between the two basic principles of Molinism, i.e., God’s middle knowledge of counterfactuals of creaturely freedom, and divine immutability. To this end, firstly, we set out the difference between strong and weak immutability: according to the latter only God’s essential attributes remain unchanged, while the former affirms that God cannot change in any way. Our next step is to argue that Molinism ascribes strong immutability to God. However, according to Molinism, some counterfactuals of (...) freedom need to be actualized by divine will. We argue that this claim does entail a change in God because it attributes a knowledge to God that involves moving from possibility to actuality through divine will. Therefore, claiming God knows counterfactuals of freedom leads us to reject the strong sense of divine immutability. Further, we argue that assuming God’s knowledge encompasses counterfactuals of freedom cannot be consistent even with weak immutability because, according to Molinism, a change in God’s knowledge requires a change in His essence. We conclude that Molinism is incoherent. (shrink)

Acknowledgements -- List of illustrations -- Table of transliteration -- Introduction: Shams al-Din Samarqandi: his life and training -- Works and thought -- Science of the cosmos and the soul ('Ilm al-afaq wa al-anfus) -- Manuscripts used in preparing this edition -- Sources -- Persian and Arabic texts [1-287].

“Maqamat as-Sufiyya” is a small theoretical works of Shihab ad-Din as-Suhrawardi (ab. 1154-1191), the founder of the Philosophy of Illumination. It contains practical instructions and theoretical reflections and proofs. As-Suhrawardi especially notes terminology used by philosophers and terminology used by sufis in “Maqamat as-Sufiyya”.

This is a major work of Islamic mysticism by the great thirteenth-century Persian poet, Farid al-Din Attar. Translated by A J Arberry, Attar’s work and thought is set in perspective in a substantial introduction.

The appearance of nonlinear equations in science, engineering, economics, and medicine cannot be denied. Solving such equations requires numerical methods having higher-order convergence with cost-effectiveness, for the equations do not have exact solutions. In the pursuit of efficient numerical methods, an attempt is made to devise a modified strategy for approximating the solution of nonlinear models in either scalar or vector versions. Two numerical methods of second-and sixth-order convergence are carefully merged to obtain a hybrid multi-step numerical method with twelfth-order (...) convergence while using seven function evaluations per iteration, resulting in the efficiency index of about 1.4262. The convergence is also ascertained theoretically, and the asymptotic error constant is computed. Furthermore, various numerical methods of varying orders are used to compare the numerical results obtained with the proposed hybrid method in approximate solution, number of iterations, absolute error, absolute functional value, and the machine time measured in seconds. The obtained results outperformed the chosen methods when applied models arising from physical and natural fields were solved. Finally, to observe the convergence graphically, some complex polynomials are plotted as polynomiographs, wherein the rapid convergence of the proposed method is guaranteed. (shrink)

Quʹest-ce que lʹêre? Cette question passe pour fonder la philosophie. Encore faut-il s'entendre sur le sens du mot "être ". L'essence des choses détermine-t-elle leur existence? Devons-nous affirmer, au contraire, que l'existence conditionne l'intensité d'être qui qualifie une certaine réalité? Molla Sadr Shirazi, dans ce traité écrit en Iran au siècle de Descartes et de Leibniz, médite ces questions qui sont encore les nôtres. Mais les solutions qu'il propose s'évadent hors de nos perspectives, après avoir opéré une révolution décisive dans (...) la métaphysique des Orientaux. Penseur shi'ite en butte à la persécution, Molla Sadra est la plus haute figure de la philosophie iranienne islamique au temps splendide de la cour safavide d'Ispahan. Sa doctrine du primat de l'existence, que le présent ouvrage expose complètement, ouvre sur une interprétation spirituelle de la résurrection des corps. Cette traduction par Henry Corbin, qui fut aussi l'éditeur du texte original, a fait événement : par son ample introduction, il situe la question de l'être et déploie une explication comparée de ce que l'Occident grec puis médiéval en ont fait, avec la tradition shi'iite. -- Back cover. (shrink)

The central issue in this work is self-knowledge. The human soul is created in the Image of God with a purpose.

Construction cost estimation is one of the essential processes in construction management. Project cost is a complex engineering problem due to various factors affecting the construction industry. Accurate cost estimation is important in construction management and significantly impacts project performance. Artificial intelligence models have been effectively implemented in construction management studies in recent years owing to their capability to deal with complex problems. In this research, extreme gradient boosting is developed as an advanced input selector algorithm and coupled with three (...) AI models, including random forest, artificial neural network, and support vector machine for cost estimation. Datasets were gathered based on a survey conducted on 90 building projects in Iraq. Statistical indicators and graphical methods were used to evaluate the developed models. Several input predictors were used, and XGBoost highlighted inflation as the most crucial parameter. The results indicated that the best prediction was attained by XGBoost-RF using six input parameters, with r-squared and the mean absolute percentage error equal to 0.87 and 0.25, respectively. The comparison results revealed that all AI models showed good prediction performance when applied to datasets affected by more than two parameters. The outcomes of this research revealed an optimistic strategy that can help decision makers select the influencing parameters in the early phases of project management. Also, developing a prediction model with high precision results can assist the project’s estimators in decreasing the errors in the cost estimation process. (shrink)