Alvin Plantinga

Chapter 7 concluded with the claim that the Classical Argument for possible non‐existent objects depends on both the possibility of singular negative existentials and the Ontological Principle. The Ontological Principle is the principle that any world in which a singular proposition is true is one in which there is such a thing as its subject, or in which its subject has being if not existence. In this chapter, I show that the Ontological Principle is false and that whatever plausibility it enjoys is explained by the truth of a similar principle, namely, the Restricted Ontological Principle. Thus, the Classical Argument fails. Moreover, I give an account of how fictional names function in order to show that statements about fictional subjects, for example, ‘Othello is a Moor’, do not express predicative singular propositions.

In Ch.10, I apply the previous chapters’ account of modality to the Ontological Argument for the existence of God. I begin the chapter by attempting to develop a sound version of the Ontological Argument based on the work of St. Anselm. I conclude that this argument fails, as does a more recent attempt by Charles Hartshorne and Norman Malcolm. I then give a modal version of the Ontological Argument that is sound and is based on the claim that the property of unsurpassable greatness is possibly exemplified. I grant that this premise is not likely to be accepted by those who do not already hold that the property is actually exemplified, but I argue that it is still rational to accept the premise.

“1950’li yıllarda dönemin büyük felsefecileri arasında dinsel inancı savunan bir kişi bile yoktu. 1990’lı yıllarda Yale’den UCLA’ya, Oxford’dan Heidelberg’e kadar birçok yerde insanın manevi yanını savunan ve geliştiren yüzlerce kitap yazılacak, sel olup akacaktı. Aradaki 40 yıllık süre zarfındaysa sadece ve sadece Alvin Plantinga vardı.” Kelly James Clark Tanrı’nın veya tanrıların varlığı sorusu felsefenin ezeli sorularından biri olagelmişse de Nietzsche’nin Tanrı’nın ölümünü ilan ettiği günden bu yana onu doğrularcasına yaşanan acılar, savaşlar, kötülükler bu konudaki tartışmaların sesini uzun süre bastırdı. Ama özellikle yüzyılın ikinci yarısından sonra palazlanan analitik felsefede meydana gelen “metafiziğe dönüş”, dine yakınlık duyan, en azından dinle ilgilenen filozofların tekrar Yahudi-Hıristiyan ve İslam geleneklerinde anlaşıldığı şekliyle Tanrı’nın varlığına duyulan inancın gerekçelerini yeniden değerlendirmelerine, konuya yeni bir bakış ve araçlarla bakmalarına vesile oldu. Alvin Plantinga’nın bu kitabı, yayımlandığı tarihten itibaren “analitik din felsefesi” alanının da en önemli ve sarsıcı eserlerinden biri hâline geldi ve Tanrı’nın ölmediğini ilan etti. Anselmus’tan Hume’a, Kant ve pozitivistlerden John Mackie gibi modern ateologlara kadar felsefe geleneğiyle hesaplaşan Plantinga, bu abidevi çalışmasında ontolojik, kozmolojik ve teleolojik tanrı kanıtlamalarının eski ve yeni biçimlerinin çıkmazlarını, meziyetlerini ve sunduğu imkânları değerlendiriyor. Tanrı’nın varlığına duyulan inanç ile diğer insanların varlığına ve zihinlerine duyulan inanç arasındaki şaşırtıcı ve sarsıcı bağlantıyı ortaya koyuyor.

Ateistler, kötülük probleminin Tanrı’nın varlığı aleyhine en güçlü argüman olduğu konusunda hâlâ ısrarcılar. Felsefe tarihine baktığımızda da Epikuros’tan Hume’a ve yakın dönemde Mackie’ye kadar uzanan bir yelpazede çeşitli düşünürler tarafından bu konuda birçok eleştirinin dile getirildiğini görmek mümkün. Plantinga bu çalışmasında felsefe tarihinin en köklü sorunlarından biri olan ‘Tanrı’nın varlığı sorusu’nu cevaplamaya çalışmakla kalmayıp felsefi bir yöntem ve soruşturmanın nasıl olması gerektiği konusunda muhteşem bir örnek de sunmaktadır. Plantinga, bu kitabıyla bizi, felsefe tarihinin en temel ilkelerinden birini hatırlamaya çağırıyor: var olanın ardındakini anlamaya çalışmak.

Is belief in God epistemically justified? That's the question at the heart of this volume in the _Great Debates in Philosophy_ series, with Alvin Plantinga and Michael Tooley each addressing this fundamental question with distinctive arguments from opposing perspectives. The first half of the book contains each philosopher's explanation of his particular view; the second half allows them to directly respond to each other's arguments, in a lively and engaging conversation Offers the reader a one of a kind, interactive discussion Forms part of the acclaimed _Great Debates in Philosophy_ series.

Comprehensive and packed, Alvin Plantinga's two-volume treatise defies summary. The first volume, Warrant: Current Views, is a meticulous critical survey of epistemology today. Many current approaches are presented and exhaustively discussed, and a negative verdict is passed on each in turn. This prepares the way for volume two, Warrant and Proper Function, where a positive view is advanced and developed in satisfying detail. The cumulative result is most impressive, and should command attention for years to come. Here I cannot possibly do justice to the scope and richness of Plantinga's accomplishment. Given the limitations imposed by the occasion, I will discuss only what seem the most important and original proposals, and will compare them with some relevant alternatives.

This chapter surveys several possible versions of scientism and argues that most of them are false. It also suggests that its most obvious motivation, empiricism in either scientism’s classical or positivistic guise, has little to recommend itself. The chapter then homes in on a more moderate version of scientism: the idea that when any nonscientific belief comes into conflict with a scientific belief, it is always the scientific belief that should prevail. This form of scientism, too, fails, for it can be reasonable to hang on to Christian belief even when it fits ill with scientific orthodoxy. Moderate scientism doesn’t appear moderate on closer inspection, for it implies that Christian belief is false. The right way to think about things is that science is a wonderful institution and a wonderful source of knowledge or warranted belief, but it is not our only source of knowledge about ourselves and our world.

Perhaps no one has done more in the last 30 years to advance thinking in the metaphysics of modality than has Alvin Plantinga. Collected here are some of his most important essays on this influential subject. Dating back from the late 1960's to the present, they chronicle the development of Plantinga's thoughts about some of the most fundamental issues in metaphysics: what is the nature of abstract objects like possible worlds, properties, propositions, and such phenomena? Are there possible but non-actual objects? Can objects that do not exist exemplify properties? Plantinga gives thorough and penetrating to all of these questions and many others. This volume contains some of the best work in metaphysics from the past 30 years, and will remain a source of critical contention and keen interest among philosophers of metaphysics and philosophical logic for years to come.

In this chapter, a segment from my book Warrant and Proper Function, I argue that propositions cannot be concrete objects. In particular, I examine various ways in which the concretist might explain what it is for a proposition to be possible or necessary. I then demonstrate that the concretist is forced either to count far too many propositions as necessary or hold that blatant contradictions are possible. I conclude the chapter by suggesting that abstract objects, such as propositions, can stand in causal relations. Thus, the fact that propositions are not concrete does not entail the falsity of the causal requirement – i.e., the requirement that a knower stands in a causal relation to the object of knowledge.

Individuals is divided into two parts. In Part I, Strawson tries to show that there is an important sense in which material objects and persons are basic particulars. In Part II "the aim is to establish and explain the connexion between the idea of a particular in general and that of an object of reference or logical subject". Part II contains a wealth of interesting material and ingenious argumentation. Most important here, perhaps, is Strawson's attempt to provide criteria for distinguishing subjects from predicates and particulars from universals, and to show a philosophically important link between the subject-predicate distinction and the particulars-universals distinction. What he says on this head is of considerable interest indeed. Nevertheless, I shall deal only with Part I. First I shall recount and comment upon the argument for the view that material objects are basic; then I shall state and examine what Strawson has to say about persons in more detail.

In this book and in its sequels, Warrant and Proper Function and Warranted Christian Belief, I examine the nature of epistemic warrant, that quantity, enough of which distinguishes knowledge from mere true belief. Contemporary epistemologists seldom focus attention on the nature of warrant; and when they do, they display deplorable diversity: some claim that what turns true belief into knowledge is a matter of epistemic dutifulness, others that it goes by coherence, and still others that it is conferred by reliability. I shall argue that none of these claims is correct, and (in Warrant and Proper Function) suggest a more satisfactory alternative. In the present book, I survey current contributions to the discussion of warrant and neighboring issues. I begin with internalism, looking first at the carefully crafted foundationalist internalism of Roderick Chisholm (Chs. 2 and 3). To better understand Chisholm and other internalists, however, I first make a preliminary excursus (Ch 1) into the classical internalism of Descartes, Locke, and others. After Chisholmian internalism, I turn to coherentism, which for classificatory purposes I take as a form of internalism. In the next three chapters, I consider coherentism taken generally (Ch. 4), the specific version of coherentism developed by Laurence BonJour (Ch. 5), and contemporary Bayesian versions of coherentism (Chs. 6 and 7). Next (Ch. 8), there is the more attenuated internalism of John Pollock, which I see as a transition from internalism to externalism. Finally, I examine the reliabilist and externalist views of William Alston, Fred Dretske, and Alvin Goldman (Ch. 9), and close with a preview of Warrant and Proper Function (Ch. 10).