The uniform halting problem (UH) can be stated as follows.Give a decision procedure which for any given Turing machine (TM) will decide whether or not it has an immortal instantaneous description (ID).An ID is called immortal if it has no terminal successor. As it is generally the case in the literature (see e.g. Minsky [3, p. 118]) we assume that in an ID the tape must be blank except for some finite numbers of squares. If we remove this restriction the (...) UH becomes the immortality problem (IP). The UH should not be confused with the initialised uniform halting problem (whether or not a TM has an immortal ID when started in a specified state) which can easily be shown to be undecidable (see e.g. Minsky [3, p. 151]). (shrink)

A reiteration of the main details of the case may be helpful. Euphiletus killed Eratosthenes and was prosecuted for premeditated homicide by Eratosthenes' relatives. The present speech, our sole source of information concerning the case, was written for the defendant, partially or totally, by a professional speechwriter, presumably Lysias. In this speech Euphiletus admits killing Eratosthenes. He pleads, however, that, since he killed Eratosthenes after catching him in the act of adultery with his own wife, this was a case of (...) justified homicide. At the same time, he denies a charge of the prosecution that he had killed Eratosthenes for reasons unrelated to the adultery. The speech was delivered before a court of fifty-one judges especially set up to judge such cases, as is attested elsewhere:T1Arist. Ath. Pol. 57.3: ‘If…a person admits that he has killed someone but claims that he had a right to do so, as, for instance, when he has surprised an adulterer in the act,… then the trial takes place in the Delphinion’. (shrink)

Postmodernism in philosophy holds that traditional philosophy has come (or should come) to an end, and that it must be succeeded by something else, such as “thinking” (Heidegger), empirical science (Quine), linguistic therapy (Wittgenstein), or an “attempt to prevent the conversation of the West from attaining the secure path of science” (Rorty). Clearly, the claim to be postmodern presupposes a view of traditional philosophy, of its characteristics, and of its genesis. In this essay, such a view will be developed, and (...) its consequences for our conception of philosophy will be discussed. The view defended here is different from those of Heidegger and Rorty. For ease of exposition the discussion will refer to Rorty's Philosophy and the Mirror of Nature. (shrink)

A reiteration of the main details of the case may be helpful. Euphiletus killed Eratosthenes and was prosecuted for premeditated homicide by Eratosthenes' relatives. The present speech, our sole source of information concerning the case, was written for the defendant, partially or totally, by a professional speechwriter, presumably Lysias. In this speech Euphiletus admits killing Eratosthenes. He pleads, however, that, since he killed Eratosthenes after catching him in the act of adultery with his own wife, this was a case of (...) justified homicide. At the same time, he denies a charge of the prosecution that he had killed Eratosthenes for reasons unrelated to the adultery. The speech was delivered before a court of fifty-one judges especially set up to judge such cases, as is attested elsewhere:T1Arist. Ath. Pol. 57.3: ‘If…a person admits that he has killed someone but claims that he had a right to do so, as, for instance, when he has surprised an adulterer in the act,… then the trial takes place in the Delphinion’. (shrink)

This paper aims to show that Thomas Aquinas consider the problem of evil, not only as a question of evil in itself, but in the much broader context of God’s work of creation and providential government, and thus proves that the existence of evil in the world is not a viable argument against God’s existence. For Thomas Aquinas, evil is not something, some being with its essence and nature, but it is the lack of a good that should by nature (...) be present in a being. Evil has good as its subject, object, and cause, and may ultimately have good as its effect. Such complete immersion and dependence of evil on good says that evil’s ontological status is real, but not absolute. Evil cannot exist from itself, by itself and for itself. It is in every way subordinated to the good. Such a status of evil becomes even more apparent in Aquinas’ view of the relation between evil and the absolute good that is God. God is the one who exists in the absolute sense, and evil exists only in relation to the good that is God’s creation. The decay of things is only a consequence of God creating a good world in which some beings may be deficient in good, which they sometimes are. This means that God does not want evil, but in a way allows it while providentially governing everything to the good that he is. God is so omnipotent that by allowing evil he can accomplish even greater and more numerous goods. In the work of God’s governing over the world, man occupies a special place because he is capable of a personal relationship with God. But man can also voluntarily deviate from the order and rules that lead him to union with his ultimate good which is God. Such an act is called the moral evil of guilt or sin. Thomas Aquinas finds the example and model of the victory of good over evil in the character of the righteous and innocent Job, who, thanks to the experience of a terrible evil, has realised that God infinitely transcends human cognition, being and power, and that any attribution of evil to God would be foolishness, that every denial of God’s existence because of the evil that befell him would be insane. Job realised that God’s righteousness and logos rule everything and that the ultimate victory of good is certain. (shrink)

In keeping with recent views of consciousness of self as represented in the body in action, empirical studies are reviewed that demonstrate a bottlenose dolphin’s conscious awareness of its own body and body parts, implying a representational “body image” system. Additional work reviewed demonstrates an advanced capability of dolphins for motor imitation of self-produced behaviors and of behaviors of others, including imitation of human actions, supporting hypotheses that dolphins have a sense of agency and ownership of their actions and may (...) implicitly attribute those levels of self-awareness to others. Possibly, a mirror-neuron system, or its functional equivalent to that described in monkeys and humans, may mediate both self-awareness and awareness of others. (shrink)

In Politikos Plato draws a picture of the true statesman, a picture that has baffled several of the scholars who have analysed the dialogue, because it appears to be very abstract and remote from what we know about the development of the political organization of the poleis in the Archaic and Classical periods. In this article I argue that there is a clear historical background to the person whom Plato calls a statesman, viz., the famous legislators of the Archaic period, (...) in particular Lykourgos, Charondas, Zaleukos and Solon. My argument proceeds in two parts: first a survey of Plato’s general description of the statesman and second a sketch of the historical prototype of Plato’s statesman. (shrink)

SummarySubjecting to a detailed analysis Kant's diagnosis of dialectical error in the Transcendental Dialectic of the first Critique, the author posits that Kant's understanding of such error is, to the extent that it conflates the subjective‐objective, phenomenal‐noumenal, and regulative‐constitutive distinctions, fundamentally incoherent. The author argues not only that these three distinctions cannot on Kant's own terms be conflated, but also that Kant's treatment of dialectical error is further vitiated by circularity of argument: Kant proposes to explain the three distinctions by (...) means of the notion of transcendental error, which however the distinctions themselves were supposed to explain in the first place. After showing that Kant's diagnosis of dialectical error cannot be salvaged even by resorting to the Kantian concept of “transcendental subreption”, the author concludes that unless Kant could in some other way spell out the minimal conditions for dialectical error, Kant's very distinction between understanding and reason becomes difficult to justify. (shrink)

The main title and subtitle of this well-researched, lucidly written, and engaging book reflect the author's double-sided approach. On the one hand, David Edmonds uses individual life stories as a route of access to key philosophical, political, and sociocultural issues and trends in the first half of the twentieth century. On the other hand, in chronicling the broader history of the origins, aims, and legacy of the Vienna Circle, he shows how individual lives were caught up in—and shaped by—the group's (...) collective endeavor to "marry an old empiricism with the new logic", pioneered by thinkers such as Gottlob Frege, Bertrand Russell, Alfred North Whitehead, and Ludwig... (shrink)

Cognitive heuristics, as proffered by Daniel Kahneman and Amos Tversky, are reasoning shortcuts that are useful but flawed. For example, the availability heuristic “infers” an event’s probability, not by performing laborious, ideally rational calculations, but by simply assessing the ease with which similar events can be recalled. Cognitive psychologists presume that cognitive heuristics should be identified with a distinct cognitive mechanism. I argue that this is a mistake ultimately stemming from descriptive rational choice theory’s entangling of descriptive and normative theorizing. (...) Such mechanism-identification is a desideratum for kinds used in answering, “How—in a causal-mechanical sense—do we reason?” However, cognitive heuristics befit a different question, namely, “How—in a contrastive sense—do we reason vis-à-vis ideal rationality?” Clarifying cognitive heuristics’ nature and appropriate explanatory expectations can enhance understanding, provide lessons applicable elsewhere, and illuminate an important episode in the history of cognitive psychological science. (shrink)

Herman Cappelen investigates how language and other representational devices can go wrong, and how to fix them. We use language to understand and talk about the world, but what if our language has deficiencies that prevent it from playing that role? How can we revise our concepts, and what are the limits on revision?

The standard view of philosophical methodology is that philosophers rely on intuitions as evidence. Herman Cappelen argues that this claim is false: it is not true that philosophers rely extensively on intuitions as evidence. At worst, analytic philosophers are guilty of engaging in somewhat irresponsible use of 'intuition'-vocabulary. While this irresponsibility has had little effect on first order philosophy, it has fundamentally misled meta-philosophers: it has encouraged meta-philosophical pseudo-problems and misleading pictures of what philosophy is.

Cappelen and Dever present a forceful challenge to the standard view that perspective, and in particular the perspective of the first person, is a philosophically deep aspect of the world. Their goal is not to show that we need to explain indexical and other perspectival phenomena in different ways, but to show that the entire topic is an illusion.