the history and philosophy of thought experiments has attracted considerable attention in recent years. Of particular interest to philosophers as well as historians of science has been the emergence of thought experiments as a common procedure in early modern science, along with the methodological presuppositions that underwrite this practice.1 From a philosophical perspective, the notion of thought experiments is intimately tied in with the much-debated connection between conceivability and possibility, as exemplified by the radical affirmation of the Conceivability Criterion of (...) Possibility by David Hume.2 Consequent upon this, historians of ancient and medieval philosophy have also expressed interest in .. (shrink)

Avicenna's discussion of space is found in his comments on Aristotle's account of place. Aristotle identified four candidates for place: a body's matter, form, the occupied space, or the limits of the containing body, and opted for the last. Neoplatonic commentators argued contra Aristotle that a thing's place is the space it occupied. Space for these Neoplatonists is something possessing dimensions and distinct from any body that occupies it, even if never devoid of body. Avicenna argues that this Neoplatonic notion (...) of space is untenable on the basis of three arguments. In general he maintains that bodies' impenetrability is explained by reference to dimensionality. Consequently, if it is dimensionality that explains impenetrability, and yet as the Neoplatonists hold space inherently possesses dimensions, material bodies could never interpenetrate space and so occupy it and thus bodies could never have a place. The conclusion is patently false. In additions Avicenna argues that the method used to arrive at the possibility of space is illicit, and so Neoplatonist cannot show that space is even possible. Thus, concludes Avicenna, Aristotle's initial account must be correct. The paper outlines the historical context of this debate and then treats Avicenna's arguments against space in detail. (shrink)

No argument from the Arabic philosophical tradition has received more scholarly attention than Avicenna's ‘flying man’ thought experiment, in which a human is created out of thin air and is able to grasp his existence without grasping that he has a body. This paper offers a new interpretation of the version of this thought experiment found at the end of the first chapter of Avicenna's treatment of soul in theHealing. We argue that it needs to be understood in light of (...) an epistemological theory set out elsewhere by Avicenna, which allows that all the constitutive properties of an essence will be clear to someone who understands and considers that essence. On our reading, this theory is put to work in the ‘flying man’: because the flying man would grasp that his own essence has existence without grasping that he has a body, connection to body cannot be constitutive of the essence. (shrink)

Avicenna's discussion of space is found in his comments on Aristotle's account of place. Aristotle identified four candidates for place: a body's matter, form, the occupied space, or the limits of the containing body, and opted for the last. Neoplatonic commentators argued contra Aristotle that a thing's place is the space it occupied. Space for these Neoplatonists is something possessing dimensions and distinct from any body that occupies it, even if never devoid of body. Avicenna argues that this Neoplatonic notion (...) of space is untenable on the basis of three arguments. In general he maintains that bodies' impenetrability is explained by reference to dimensionality. Consequently, if it is dimensionality that explains impenetrability, and yet as the Neoplatonists hold space inherently possesses dimensions, material bodies could never interpenetrate space and so occupy it and thus bodies could never have a place. The conclusion is patently false. In additions Avicenna argues that the method used to arrive at the possibility of space is illicit, and so Neoplatonist cannot show that space is even possible. Thus, concludes Avicenna, Aristotle's initial account must be correct. The paper outlines the historical context of this debate and then treats Avicenna's arguments against space in detail. (shrink)

The psychological writings of the Islamic philosopher Avicenna are noted for the hypothetical example he gives of the man suspended in space—the “Flying Man.” This example, which left its impress on the Latin scholastics and has engaged the attention of modern scholars, occurs thrice in his writings in contexts that are closely related, but not identical. Its third occurrence, which represents a condensed version, conveys the general idea. It states, in effect, that if you imagine your “entity,” “person,” “self” to (...) be created at birth fully mature, sound in mind and body, but suspended in temperate air in such a manner that this “self” is totally unaware of its body and physical circumstances, “you will find that it will be unaware of everything except the ‘fixedness’ of its individual existence.”. (shrink)

In this paper, my aim is to offer some comments on the study of Mu‘tazilite kalām, framed around the study of a particular episode in the Mu‘tazilite dispute about man – a question with a deceptively Aristotelian cadence that is not too difficult to dispel. Within this episode, my focus is on one of the major arguments used by the late Baṣrans to hold up their side of the dispute, and on the relationship between the mental and the physical which (...) emerges from it. The most interesting – and most surprising – aspect of this relationship is that the mental and the physical do not seem to be treated as distinct terms, thus creating the space for questions about how the two relate. The first person perspective seems to be identified with the physical body. My interest then is in the response of the reader to this surprising presentation – or rather, in a certain kind of reader response, and thus a certain kind of interpretive mode, whose value and viability it is part of my aim to help clarify. (shrink)