This revised and considerably expanded 2nd edition brings together a wide range of topics, including modal, tense, conditional, intuitionist, many-valued, paraconsistent, relevant, and fuzzy logics. Part 1, on propositional logic, is the old Introduction, but contains much new material. Part 2 is entirely new, and covers quantification and identity for all the logics in Part 1. The material is unified by the underlying theme of world semantics. All of the topics are explained clearly using devices such as tableau proofs, and (...) their relation to current philosophical issues and debates are discussed. Students with a basic understanding of classical logic will find this book an invaluable introduction to an area that has become of central importance in both logic and philosophy. It will also interest people working in mathematics and computer science who wish to know about the area. (shrink)

The article looks at the structure of impossible worlds, and their deployment in the analysis of some intentional notions. In particular, it is argued that one can, in fact, conceive anything, whether or not it is impossible. Thus a semantics of conceivability requires impossible worlds.

What objects exist in the social world and how should we understand them? Is a specific Pizza Hut restaurant as real as the employees, tables, napkins and pizzas of which it is composed, and as real as the Pizza Hut corporation with its headquarters in Wichita, the United States, the planet Earth and the social and economic impact of the restaurant on the lives of its employees and customers? In this book the founder of object-oriented philosophy develops his approach in (...) order to shed light on the nature and status of objects in social life. While it is often assumed that an interest in objects amounts to a form of materialism, Harman rejects this view and develops instead an “immaterialist” method. By examining the work of leading contemporary thinkers such as Bruno Latour and Levi Bryant, he develops a forceful critique of ‘actor-network theory’. In an extended discussion of Leibniz’s famous example of the Dutch East India Company, Harman argues that this company qualifies for objecthood neither through ‘what it is’ or ‘what it does’, but through its irreducibility to either of these forms. The phases of its life, argues Harman, are not demarcated primarily by dramatic incidents but by moments of symbiosis, a term he draws from the biologist Lynn Margulis. This book provides a key counterpoint to the now ubiquitous social theories of constant change, holistic networks, performative identities, and the construction of things by human practice. It will appeal to anyone interested in cutting-edge debates in philosophy and social and cultural theory. (shrink)

Hylomorphism is the theory that objects are composites of form and matter. Recently it has been argued that form is structure, or the arrangement of an object's parts. This paper shows that the principle of form cannot be ontologically exhausted by structure. That is, I deny form should be understood just as the arrangement of an object's parts. I do so by showing that structure cannot play the role form is supposed to in a certain domain of objects, specifically, in (...) mereological simples. Thus, I show that Hylomorphism does not reduce to Structuralism. I also draw out some important consequences from my argument for Hylomorphism in general. (shrink)

The case of very young children is a test case for the plausibility of reductionism about testimonial warrant. Reductionism requires reductive reasons, reductively justified and actively deployed for testimonial justification. Though nascent language-users enjoy warranted testimony based beliefs, they do not meet these three reductionist demands. This paper clearly formulates reductionism and the infant/child objection. Two rejoinders are discussed: an influential conceptual argument from Jennifer Lackey’s paper “Testimony and the Infant/Child Objection” and the growing empirical evidence from developmental psychology on (...) selective trust in children. Neither Lackey’s argument nor the empirical evidence vindicate reductionism. (shrink)

More Speculative Realism Graham Harman. GRAHAM HARMAN BELLS AND WHISTLES MURE SPEBLILATIVE REALISM Bell and Whistles More Speculative Realism Graham Harman Winchester, UK. Front Cover.

One of Da Costa’s motives when he constructed the paraconsistent logic C! was to dualise the negation of intuitionistic logic. In this paper I explore a different way of going about this task. A logic is defined by taking the Kripke semantics for intuitionistic logic, and dualising the truth conditions for negation. Various properties of the logic are established, including its relation to C!. Tableau and natural deduction systems for the logic are produced, as are appropriate algebraic structures. The paper (...) then investigates dualising the intuitionistic conditional in the same way. This establishes various connections between the logic, and a logic called in the literature ‘Brouwerian logic’ or ‘closed-set logic’. (shrink)

Here are three (rough) theories of testimonial knowledge. (1) Speaker's knowledge: a hearer acquires the knowledge that P though testimony because of the speaker's knowledge that P--testimony "transfers" knowledge. This is the popular view, defended by Elizabeth Fricker and Paul Faulkner, among others. (2) Speaker's assertion: a hearer acquires the knowledge that P through testimony because the speaker's assertion that P is reliable that P in the right way (safe or sensitive). That's Jennifer Lackey's view. (3) Speaker's comprehension state: a (...) hearer acquired the knowledge that P through comprehending as of a speaker's assertion that P where the comprehension state is reliable in the right way (safe). That's my view. Lackey would reject such a view for it allows cases of testimonial knowledge that P from a speaker who did not assert that P. But Faulkner might reject Lackey's view on the grounds that it allows cases of testimonial knowledge that P from a speaker who did not know that P. Lackey replies that her account is better unified. But for the same reason, my account is even better unified. This paper runs through a series of cases and shows that my account--the Unified Account--is superior to the others. (shrink)

Radical skepticism about the external implies that no belief about the external is even prima facie justified. A theoretical reply to skepticism has four stages. First, show which theories of epistemic justification support skeptical doubts (show which theories, given other reasonable assumptions, entail skepticism). Second, show which theories undermine skeptical doubts (show which theories, given other reasonable assumptions, do not support the skeptic’s conclusion). Third, show which of the latter theories (which non-skeptical theory) is correct, and in so doing show (...) that all of the rival theories of justification, skeptical and non-skeptical alike, are mistaken. Fourth, explain why skeptical doubts are sometimes (or sometimes merely seem) intuitive, and thereby accommodate skeptical doubts without capitulation. Michael Williams has pioneered the very idea of a theoretical reply. A theoretical diagnosis consists in just the first two stages. An adequate reply, which is correct at each stage, would rebut the skeptic entirely. Williams’ own reply, I argue, is inadequate. I offer in its place an exhaustive and accurate diagnosis of skepticism. I distinguish four kinds of skepticism and five theories of justification. I then show which theories do, and which theories do not, support which kinds of skepticism. (shrink)

This article begins by addressing a critique of my book Immaterialism by the archaeologists Þóra Pétursdóttirr and Bjørnar Olsen in their 2018 article “Theory Adrift.” As they see it, I restrict myself in Immaterialism to available historical documentation on the Dutch East India Company (VOC), and they wonder how my account might have changed if I had discussed more typical archaeological examples instead: wrecked and sunken ships, released ballast, deserted harbors, distributed goods, and derelict fortresses. In response, I argue that (...) my account was not therefore non-archaeological, since ruins are the topic of archaeology only by accident: the real subject of the discipline is what Marshall McLuhan describes as “cold media,” in the sense that they are low in information. McLuhan’s distinction between hot and cold media is shown to be surprisingly analogous to Aristotle’s difference between continua and discrete substances, and some consequences are drawn from this analogy. (shrink)

Altered state theories of hypnosis posit that a qualitatively distinct state of mental processing, which emerges in those with high hypnotic susceptibility following a hypnotic induction, enables the generation of anomalous experiences in response to specific hypnotic suggestions. If so then such a state should be observable as a discrete pattern of changes to functional connectivity (shared information) between brain regions following a hypnotic induction in high but not low hypnotically susceptible participants. Twenty-eight channel EEG was recorded from 12 high (...) susceptible (highs) and 11 low susceptible (lows) participants with their eyes closed prior to and following a standard hypnotic induction. The EEG was used to provide a measure of functional connectivity using both coherence (COH) and the imaginary component of coherence (iCOH), which is insensitive to the effects of volume conduction. COH and iCOH were calculated between all electrode pairs for the frequency bands: delta (0.1–3.9Hz), theta (4–7.9Hz) alpha (8–12.9Hz), beta1 (13–19.9Hz), beta2 (20–29.9Hz) and gamma (30–45Hz). The results showed that there was an increase in theta iCOH from the pre-hypnosis to hypnosis condition in highs but not lows with a large proportion of significant links being focused on a central-parietal hub. There was also a decrease in beta1 iCOH from the pre-hypnosis to hypnosis condition with a focus on a fronto-central and an occipital hub that was greater in high compared to low susceptibles. There were no significant differences for COH or for spectral band amplitude in any frequency band. The results are interpreted as indicating that the hypnotic induction elicited a qualitative change in the organization of specific control systems within the brain for high as compared to low susceptible participants. This change in the functional organization of neural networks is a plausible indicator of the much theorized “hypnotic-state”. (shrink)

The Hungarian-born philosopher of science Imre Lakatos introduces the methodology of scientific research programs, and also makes a famous distinction between “progressive” and “degenerating” programs. Although Lakatos does not give extensive guidance as to whether philosophical rather than scientific theories could also be judged in this way, he does give some intriguing hints in his discussion of a debate on induction between Rudolf Carnap and Karl Popper. After considering two extant but misguided attempts to use “degenerating” as a polemical term (...) in philosophy, this article gathers the aforementioned hints from Lakatos and a few others from Alfred North Whitehead in an effort to identify what a “progressive philosophy” might look like. (shrink)

I address two related questions. First: what value is there in visiting a museum and becoming acquainted with the objects on display? For art museums the answer seems obvious: we go to experience valuable works of art, and experiencing valuable works of art is itself valuable. In this paper I focus on non-art museums, and while these may house aesthetically valuable objects, that is not their primary purpose, and at least some of the objects they house might not be particularly (...) aesthetically valuable at all. Second: to what ontologicaltypeorcategorydo museum objects belong? Whattypeof item should be featured on an inventory of a museum collection? I distinguish betweentypicalobjects andspecialobjects. While these are different types of object, both, I argue, areabstracta, notconcreta. The answer to the second question, concerning the ontological category of special objects, throws new light on various philosophical questions about museums and their collections, including the question about the value of museum experiences. But it also throws light on important questions concerning the preservation and restoration of museum objects. (shrink)

It is uncontroversial that artifacts like statues and tables are mind-dependent. What is controversial is whether and how this mind-dependence has implications for the ontology of artifacts. I argue the mind-dependence of artifacts entails that there are no artifacts or artifact joints in the extra-mental world. In support of this claim, I argue that artifacts and artifact joints lack any extra-mental grounding, and so ought not to have a spot in a realist ontology. I conclude that the most plausible story (...) about artifacts is that they are in minds of suitably intelligent creatures, and not the extra-mental world. Artifacts and their joints are merely mental projections onto a world of ‘indifferent materials’. With this established, I show how many cases of object coincidence, the view that more than one material object can be located in the same exact region of space-time, cannot occur. (shrink)

Religion is more than a matter of worshipping a deity or spirit. For many people, religion pervades every part of their lives and is not separated off into some purely private and personal realm. Religion is integral to many people's relationship with the wider world, an aspect of their dwelling among other beings - both human and other-than-human - and something manifested in the everyday world of eating food, having sex and fearing strangers. Food, Sex and Strangers offers alternative ways (...) of thinking about what religion involves and how we might better understand it. Drawing on studies of contemporary religions, especially among indigenous peoples, the book argues that religion serves to maintain and enhance human relationships in and with the larger-than-human world. Fundamentally, religion can be better understood through the ways we negotiate our lives than in affirmations of belief - and it is best seen when people engage in intimate acts with themselves and others. (shrink)

Este artículo es una respuesta a la crítica de Noé Expósito Ropero —que se basa en gran medida en la visión de Javier San Martín— a mi interpretación de la filosofía de José Ortega y Gasset. El resultado del argumento de Expósito Ropero es que Ortega es más fenomenólogo de lo que yo considero, que me equivoco al pen-sar que existen los “objetos reales” más allá de los objetos intencionales de Edmund Husserl, y que ningún objeto inanimado puede ser tratado (...) como un “yo”. Como réplica, respondo a cada una de estas acusaciones.This article is a response to Noé Expósito Ropero’s critique—which draws heavily on the views of Javier San Martín—of my interpretation of the philosophy of José Ortega y Gasset. The upshot of Expósito Ropero’s argument is that Ortega is more of a phenomenologist than I realize, that I am wrong to think there is any such thing as “real objects” beyond Edmund Husserl’s intentional objects, and that no inanimate object can be treated as an “I.” In response, I answer each of these charges. (shrink)

In this Introduction, we begin with two relatively uncontroversial matters: the broad contours of the history of discussion of ontological arguments, and the major topics that require discussion in connection with ontological arguments. We then move on to consideration of the much more difficult task of the characterisation of ontological arguments—i.e. the task of saying exactly what ontological arguments are and explaining how they differ from, say, cosmological, teleological, and moral arguments for the existence of God—and then the equally contested (...) question of the provision of general objections to ontological arguments, including, in particular, attempts to show that there could not possibly be a successful ontological argument. Finally, we consider some often-neglected questions about how to assess the merits of arguments, with a particular eye on the assessment of the merits of ontological arguments. (shrink)

This paper compares the doxastic credentials of the claim that nothing comes from nothing with the doxastic credentials of the claim that there is no causing without changing. I argue that comparison of these two claims supports my contention that considerations about causation do nothing to make theism more attractive than naturalism.

This chapter distinguishes between various senses in which one might be a pluralist about logic. In several of these, pluralism is uncontentiously correct. The difficult issue is whether there are different accounts of validity that are equally correct. It argues for logical monism in this regard.

This article uses the ideas of Marshall McLuhan (and to a lesser extent Martin Heidegger) to argue for a non-relational approach to architecture. The word ‘form’ is used throughout the arts and humanities, though in different ways depending on the term to which it is opposed: as in form vs. function, form vs. content, and form vs. matter. In his book The Autopoiesis of Architecture, Patrik Schumacher argues that form/function is the lead-distinction of the architectural profession. I hold that Schumacher (...) cannot be right in this claim, since form and function are both too relational in character to form a true opposition. (shrink)

Essays on philosophy and intellectual history, focusing in particular on John Locke.

Ancient Greek Philosophy From Thales, who is often considered the first Western philosopher, to the Stoics and Skeptics, ancient Greek philosophy opened the doors to a particular way of thinking that provided the roots for the Western intellectual tradition. Here, there is often an explicit preference for the life of reason and rational thought. We … Continue reading Ancient Greek Philosophy →.

The concept of decline has been a constant in the historical thinking of all societies. This chapter discusses this concept, the possible socio-psychological reasons for this concept, and the implications for the understanding of history. Though a belief in a Golden Age is often caused by and sustained by pessimism or nostalgia, it does not follow that there is no truth in such beliefs. The chapter presents some secular counterparts which also harbor same nostalgia for a remote past when everything (...) was perfect. It is also not necessary to believe that the past was a period of absolute perfection in order to hold that the present is in important ways a period of decline. (shrink)