al-juzʼ al-awwal. rubʻ al-ʻibādāt wa-rubʻ al-ʻādāt wa-yashtamil ʻalá al-manhaj, al-ʻaqāʼid, al-ʻibādāt, al-muʻāmālāt, al-ādāb-- al-juzʼ al-thānī.

Good and evil; religious aspects; Islam.

The Arabic philosophical fable _Hayy Ibn Yaqzan _is a classic of medieval Islamic philosophy. Ibn Tufayl, the Andalusian philosopher, tells of a child raised by a doe on an equatorial island who grows up to discover the truth about the world and his own place in it, unaided—but also unimpeded—by society, language, or tradition. Hayy’s discoveries about God, nature, and man challenge the values of the culture in which the tale was written as well as those of every contemporary society. (...) Goodman’s commentary places _Hayy Ibn Yaqzan _in its historical and philosophical context. The volume features a new preface and index, and an updated bibliography. “One of the most remarkable books of the Middle Ages.”—_Times Literary Supplement_ “An enchanting and puzzling story.... The book transcends all historical and cultural environments to settle upon the questions of human life that perpetually intrigue men.”—_Middle East__ Journal_ “Goodman has done a service to the modern English reader by providing a readable translation of a philosophically significant allegory.”—_Philosophy East and West_ “Add[s] bright new pieces to an Islamic mosaic whose general shape is already known.”—_American Historical Review_. (shrink)

The notion of a hypothesis being deployed essentially in the derivation of a novel prediction plays a key role in the deployment realist reply to Laudan’s and Lyon’s attacks to the No Miracle Argument. However Lyons criticized Psillos’ criterion of essentiality, urging deployment realists to abandon this requirement altogether and accept as true all the assumptions actually deployed in novel predictions. But since many false assumptions were actually deployed in novel predictions, he concludes that the “no miracle argument” and deployment (...) realism fail. I reply that the essentiality condition is required by Occam’s razor, and a “no miracle argument” deprived of that condition is a straw man. While Lyons’ criticisms of Psillos’ formalization of essentiality may be well taken, I suggest that there is a simpler formulation which escapes those criticisms and is enough to deal with the supposed counterexamples to the No Miracle Argument and deployment realism: a hypothesis is essential when it does not have a proper part (in Yablo’s sense) from which the prediction could also be derived. I then show how this condition rescues deployment realism from Lyons’ purported historical counterexamples. Essentiality in this sense cannot be detected prospectively, but this is just what we should expect, and far from causing problems for deployment realists, this frees them from unreasonable obligations. (shrink)

The currently most plausible version of scientific realism is probably “deployment” realism, based on various contributions in the recent literature, and worked out as a unitary account in Psillos. According to it we can believe in the at least partial truth of theories, because that is the best explanation of their predictive success, and discarded theories which had novel predictive success had nonetheless some true parts, those necessary to derive their novel predictions. According to Doppelt this account cannot withstand the (...) antirealist objections based on the “pessimistic meta-induction” and Laudan’s historical counterexamples. Moreover it is incomplete, as it purports to explain the predictive success of theories, but overlooks the necessity to explain also their explanatory success. Accordingly, he proposes a new version of realism, presented as the best explanation of both predictive and explanatory success, and committed only to the truth of best current theories, not of the discarded ones. Here I argue that Doppelt has not shown that deployment realism as it stands cannot solve the problems raised by the history of science, explaining explanatory success does not add much to explaining novel predictive success, and a realism confined to current theories is implausible, and actually the easiest prey to the pessimistic meta-induction argument. (shrink)

Islamic philosophy and creation (Islam) from early works to 1800.

Mulla Sadra (ca. 1572-1640) is one of the most prominent figures of post-Avicennan Islamic philosophy and among the most important philosophers of Safavid Persia. He was a prolific writer whose work advanced the fields of intellectual and religious science in Islamic philosophy, but arguably his most important contribution to Islamic philosophy is in the study of existence (wujud) and its application to such areas as cosmology, epistemology, psychology, and eschatology. Sadra represents a paradigm shift from the Aristotelian metaphysics of fixed (...) substances, which had dominated Islamic philosophy, to an analysis of existence as the ultimate ground and dynamic source of things. He posits that all beings derive their reality and truth from their wujud and that a proper philosophical analysis must therefore start and eventually end with it. The present work's focus on Sadra's gradational ontology provides a strong foundation for the reader to understand Sadra's other works and later texts by other philosophers working in the same field. This edition contains parallel English-Arabic texts and a new translation by preeminent scholar of Islamic philosophy Seyyed Hossein Nasr. (shrink)

Predictivists use the no miracle argument to argue that “novel” predictions are decisive evidence for theories, while mere accommodation of “old” data cannot confirm to a significant degree. But deductivists claim that since confirmation is a logical theory-data relationship, predicted data cannot confirm more than merely deduced data, and cite historical cases in which known data confirmed theories quite strongly. On the other hand, the advantage of prediction over accommodation is needed by scientific realists to resist Laudan’s criticisms of the (...) no miracle argument. So, if the deductivists are right, the most powerful argument for realism collapses. There seems to be an inescapable contradiction between these prima facie plausible arguments of predictivists and deductivists; but this puzzle can be solved by understanding what exactly counts as novelty, if novel predictions must support the no miracle argument, i.e., if they must be explainable only by the truth of theories. Taking my cues from the use-novelty tradition, I argue that (1) the predicted data must not be used essentially in building the theory or choosing the auxiliary assumptions. This is possible if the theory and its auxiliary assumptions are plausible independently of the predicted data, and I analyze the consequences of this requirement in terms of best explanation of diverse bodies of data. Moreover, the predicted data must be (2) a priori improbable, and (3) heterogeneous to the essentially used data. My proposed notion of novelty, therefore, is not historical, but functional. Hence, deductivists are right that confirmation is independent of time and of historical contingencies such as if the theorist knew a datum, used it, or intended to accommodate it. Predictivists, however, are right that not all consequences confirm equally, and confirmation is not purely a logical theory-data relation, as it crucially involves background epistemic conditions and the notion of best explanation. Conditions (1)–(3) make the difference between prediction and accommodation, and account for the confirming power of theoretical virtues such as non ad-hocness, non-fudging, non-overfitting, independence and consilience. I thus show that functional novelty (a) avoids the deductivist objections to predictivism, (b) is a gradual notion, in accordance with the common intuition that confirmation comes in degrees, and (c) supports the no miracle argument, so vindicating scientific realism. (shrink)

There are two possible realist defense strategies against the pessimistic meta-induction and Laudan’s meta-modus tollens: the selective strategy, claiming that discarded theories are partially true, and the discontinuity strategy, denying that pessimism about past theories can be extended to current ones. A radical version of discontinuity realism is proposed by Gerald Doppelt: rather than discriminating between true and false components within theories, he holds that superseded theories cannot be shown to be even partially true, while present best theories are demonstrably (...) completely true. I argue that this position, running counter both the cumulativity of science and fallibilism, is untenable; it cannot account for the success of past theories, nor for the failures of current theories, and rather than shutting the door to the pessimistic historical objections it opens it wide. The best strategy, instead, joins the selective idea there was both some truth and some falsity in discarded theories, like in current ones, with the moderate discontinuity idea that the truth rate in present best theories is much greater than in past ones. (shrink)

Many philosophers have shown great interest in the recent anti-realist turn in Hilary Putnam's thought, whereby he rejects "meta-physical realism" in favor of "internal realism". However, many have also found it difficult to gain an exact understanding, and hence a correct assessment of Putnam's ideas. This work strives for some progress on both of these accounts. ;Part one explicates what Putnam understands by "metaphysical realism" and considers to what extent Putnam himself formerly adhered to it. It reconstructs Putnam's arguments for (...) the indeterminacy of reference and for the rejection of reference and of truth as correspondence, and it shows how such arguments hinge both on considerations in the theory of reference and in metaphysics. It suggests that commentators have often missed the actual structure of Putnam's argumentation, e.g. by simply identifying it with the so called "model-theoretic" argument. Finally, Part One examines Putnam's "internal realism", stressing its ties to such authors as Kant, Goodman and Dummett, and explaining in what senses it is really a strong kind of anti-realism. Basically, Putnam does not deny that a mind-independent world exists, but he denies that we may refer to it, and claims that the world we know is thoroughly mind-dependent. ;Part two criticizes Putnam's arguments for indeterminacy along with some similar indeterminacy arguments such as Goodman's argument on confirmation, and the Kripke-Wittgenstein argument on rules. This is done by vindicating the notion of objective similarity, and by relying on it to fix reference. Putnam's claim that we have no theory showing how reference could possibly be determinate is countered by sketching a possible account of reference--distinctly owing to functionalism--which might answer such question. Putnam's notorious "brains in the vat" argument is also discussed and criticized. ;Putnam's metaphysical picture, by which the mind-independent world is not sorted out into objects or properties, is granted. But it is argued that nonetheless we may refer to the mind-independent world, and have beliefs which are true of it. (shrink)