David Lewis is one of the most influential philosophers of our age, and On the Plurality of Worlds is his magnum opus. OPW offers an extended development and defense of the hypothesis that there are many universes, things of the same kind as the universe in which we all live, move, and have our being. Lewis calls these universes ―worlds‖, deliberately recalling the notion of a ―possible world‖ familiar from modal logic and the metaphysics of modality. The title invokes the thesis of the book: there are pluralities of worlds, things of the same kind as the world we inhabit, differing only with respect to what goes on in them. Lewis sought in earlier work (Lewis, 1973, pp. 84–86) to offer a direct argument from common sense modal commitments to the existence of a plurality of worlds. OPW offers a less direct argument. Here, Lewis supports the hypothesis by arguing that, if we accept it, we have the material to offer a wide range of analyses of hitherto puzzling and problematic notions. We thereby effect a theoretical unification and simplification: with a small stock of primitives, we can analyze a number of important philosophical notions with a broad range of applications. But the analyses Lewis proposes are adequate only if we accept the thesis that there are a plurality of worlds. Lewis claims that this is a reason to accept the thesis. In his words, «the hypothesis is serviceable, and that is a reason to think that it is true» (p. 3).

On the Plurality of Worlds

Language, Thought, and Other Biological Categories

The Alienation Between Religion and Psychology The New Zeitgeist Western and Eastern Spiritual World Views A Theistic Spiritual View of Personality and Mental Health A Theistic Spiritual View of Psychotherapy Ethical Issues and Guidelines Religious and Spiritual Assessment Religious and Spiritual Practices as Therapeutic Interventions Spiritual Interventions Used by Contemporary Psychotherapists Case Reports of Spiritual Issues and Interventions in Psychotherapy A Theistic Spiritual View of Science and Research Methods Directions for the Future.

A Spiritual Strategy for Counseling and Psychotherapy

General Editor's Preface. Acknowledgements. 1. Preliminaries: Semiotics and Poetics: The Semiotics Enterprise How Many Semiotics? The material. 2. Foundations: Signs in the Theatre: Prague structuralism and the theatrical sign Typologies of the sign. 3. Theatrical Communication: Codes, Systems and the Performance Text: Elements of theatrical communication Theatrical Systems and Codes Theatrical competence: frame, convention and the role of the audience. 4. Dramatic Logic: The construction of the dramatic world Dramatic action and time Actant, dramatis persona and the dramatic model. 5. Dramatic Discourse: Dramatic Communication Context and deixis Universe of discourse and co-text Speech acts The said and the unsaid: implicatures and figures Textuality Towards a dramatological analysis. 6. Concluding Comments: Theatre, Drama, Semiotics: Dramatic Text/performance text A united enterprise? Suggestions for further reading. Bibliography. Index.

The semiotics of theatre and drama

Dans la cadre du debat sur la perception du monde exterieur qui oppose le scepticisme et le faillibilisme, l'A. defend une position dogmatique inspiree de l'epistemologie antisceptique de G. E. Moore. Adoptant un modele propositionnel de l'experience, l'A. developpe une approche positive de la justification de la perception.

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The Skeptic and the Dogmatist

Professor Plantinga is known for distinguished work in the fields of epistemology and philosophy of religion. In this companion volume to Warrant: The Current Debate, Plantinga develops an original approach to the question of what justifies belief and makes it knowledge. He argues that what is crucial to turning true belief into knowledge is the "proper functioning" of one's cognitive faculties, and this clears the way for the proposal that a belief is warranted whenever it is the product of properly functioning cognitive processes. Although this is in some sense a sequel to the companion volume, the arguments in no way presuppose those of the first book and it can therefore stand alone.

Warrant and proper function

Preliminary distinctions and remarks Modality de re: Objections Modality de re: Explanations Worlds, books, and essential properties The necessity of natures Transworld identity or worldbound individuals? Possible but unactual objects: The classical argument Possible but unactual objects: On what there isn't God, Evil, and the metaphysics of freedom God and necessity

The nature of necessity

The Nature of Necessity

This is the third volume in Alvin Plantinga's trilogy on the notion of warrant, which he defines as that which distinguishes knowledge from true belief. In this volume, Plantinga examines warrant's role in theistic belief, tackling the questions of whether it is rational, reasonable, justifiable, and warranted to accept Christian belief and whether there is something epistemically unacceptable in doing so. He contends that Christian beliefs are warranted to the extent that they are formed by properly functioning cognitive faculties, thus, insofar as they are warranted, Christian beliefs are knowledge if they are true.

Warranted Christian Belief

This book is intended for professional philosophers as well as upper-level undergraduate and graduate students (courses in epistemology).

Alvin Plantinga

Papers

Warrant and proper function

The nature of necessity

The Nature of Necessity

Warranted Christian Belief

Warrant: The Current Debate