The Ghirardi–Rimini–Weber (GRW) theory of spontaneous wave function collapse is known to provide a quantum theory without observers, in fact two different ones by using either the matter density ontology (GRWm) or the flash ontology (GRWf). Both theories are known to make predictions different from those of quantum mechanics, but the difference is so small that no decisive experiment can as yet be performed. While some testable deviations from quantum mechanics have long been known, we provide here something that has (...) until now been missing: a formalism that succinctly summarizes the empirical predictions of GRWm and GRWf. We call it the GRW formalism. Its structure is similar to that of the quantum formalism but involves different operators. In other words, we establish the validity of a general algorithm for directly computing the testable predictions of GRWm and GRWf. We further show that some well-defined quantities cannot be measured in a GRW world, for example the number of collapses in a system during a chosen time interval. (shrink)

In this text, a variety of modal logics at the sentential, first-order, and second-order levels are developed with clarity, precision and philosophical insight.

One of the main obstacles for panpsychism, the view that consciousness is fundamental and ubiquitous, is the difficulty of explaining how simple subjects could combine to form complex subjects. Known as the subject combination problem, it poses a possibly insurmountable challenge to the view. In this paper, I will assume that this challenge cannot be overcome and instead present a version of panpsychism that completely avoids talk of combination. Inspired by Gottfried Wilhelm Leibniz’s metaphysics of monads, I will focus on (...) a relational explanation of how simple subjects could constitute complex experiences, without them having to combine in virtue of their subjectivity. I call this view monadic panpsychism. Additionally, my proposal will not rely on emergence and so it will circumvent problems commonly faced by emergentist accounts. As I will argue, monadic panpsychism is preferable to combinatory and emergentist panpsychism because it faces a significantly less worrisome set of objections. Apart from being unaffected by the seemingly insuperable issue of subject combination, I will demonstrate that monadic panpsychism also has tools to address other kinds of the combination problem. That alone justifies the need for a new formulation of panpsychism, one which faces unique difficulties but also offers unique solutions. (shrink)

This paper presents an alternative view for understanding abduction as "inference to the best explanation", than can account from the simplest perception to the introduction of any new ideas. Subsequently the view offered is applied to medical practice and some consequences are extracted for it. The discussion is considered in the context of Peirce's theories of men classification, fixation of belief and inquiry.

In this work we study the functions, which are the polynomials of conditional algebra. The notion of conditional algebra is based on the procedural semantics of the conditional operator “if A then B else C” – one of the most usable operators of programming languages.

In this systematic historical analysis, Nino Langiulli focuses on a key philosophical issue, possibility, as it is refracted through the thought of the Italian ...

The most puzzling issue in the foundations of quantum mechanics is perhaps that of the status of the wave function of a system in a quantum universe. Is the wave function objective or subjective? Does it represent the physical state of the system or merely our information about the system? And if the former, does it provide a complete description of the system or only a partial description? We shall address these questions here mainly from a Bohmian perspective, and shall (...) argue that part of the difficulty in ascertaining the status of the wave function in quantum mechanics arises from the fact that there are two different sorts of wave functions involved. The most fundamental wave function is that of the universe. From it, together with the configuration of the universe, one can define the wave function of a subsystem. We argue that the fundamental wave function, the wave function of the universe, has a law-like character. (shrink)

In this paper, I argue for Fit, a prudential version of the claim that attitudes must fit their objects, the claim that there is an extra benefit when one's reactions fit their objects. I argue that Fit has surprising and powerful consequences for theories of well-being. Classic versions of the objective list theory, hedonism, desire views, and loving-the-good theories do not accommodate Fit. Suitable modifications change some of the views substantially. Modified views give reactions a robust role as sources of (...) well-being, and they accept that objects call for some attitudes but not others. I argue that objective list theories and loving-the-good theories require the most minimal changes to accommodate Fit, so we have a pro tanto reason to favor these views over alternatives. (shrink)

Bohmian mechanics is a theory about point particles moving along trajectories. It has the property that in a world governed by Bohmian mechanics, observers see the same statistics for experimental results as predicted by quantum mechanics. Bohmian mechanics thus provides an explanation of quantum mechanics. Moreover, the Bohmian trajectories are defined in a non-conspiratorial way by a few simple laws.

Ovaj rad istražuje relevantnost filozofije Frane Petrića za suvremene debate unutar filozofije uma i metafizike, s posebnim naglaskom na panpsihizam i kozmopsihizam. Ove teorije svijesti, koje ponovno privlače pažnju u akademskim krugovima, smatraju svijest sveprisutnim svojstvom temeljne razine stvarnosti. U skladu s time, rad proučava Petrićevo shvaćanje kozmosa kao temelja stvarnosti, koji posjeduje dušu ili svijest te kako pojedinačna bića nasljeđuju svijest od kozmosa. Uspoređuju se Petrićeve ideje sa suvremenim argumentima za panpsihizam, a posebice se analizira kako njegovo razumijevanje duše (...) odgovara recentnim teorijama o intrinzičnoj prirodi i emergenciji svijesti. Istražuje se također kako se Petrićeva filozofija odnosi na suvremene rasprave kroz prizmu njegove kritike Aristotelove koncepcije znanosti o biću kao biću. Izlažu se argumenti u prilog originalnom tumačenju Petrićeve filozofije. Glavna teza rada jest da je Petrića točnije okarakterizirati kao kozmopsihista, unatoč tome što je uveo pojam panpsihizam. Rad koristi spekulativnu interpretaciju Petrićeve misli, koja apstrahira od nekih (neo)platoničkih elemenata i modernizira jezik, s ciljem pokazivanja kako može dovesti do novih uvida u filozofiji uma i metafizici te potaknuti daljnje istraživanje. (shrink)

This book explores human possibility at the end of the twentieth century. It takes the form of discussion between an eminent philosopher and a skilled journalist about “the human measure” as it engages false absolutes and their accompanying utopias. The book proposes a “third way” between capitalism and socialism, and it concludes with comments on end-of-century phenomena, including democracy, intellectuals, and terrorism.

El presente artículo tiene como principal propósito establecer las categorías conceptuales de la meta-seguridad y la meta-violencia aplicadas al caso del VRAEM en Perú después del fin del Sendero Luminoso. Para cumplir con lo anterior, la pregunta a resolver a lo largo del artículo es ¿por qué la región del VRAEM se configura como un espacio en el que el senderismo ha mutado y representa una amenaza para los operadores de seguridad peruanos? El trabajo integra perspectivas teóricas y empíricas alrededor (...) de la mutación y transformación de la violencia y la seguridad especialmente en la región del Valle de los ríos Apurímac, Ene y Mantaro. (shrink)