We will be dealing with “sequential circuits” in the sense of E. F. Moore and G. H. Mealy. Each such circuit is assumed to have a finite number of input wires and a finite number of output wires. Each element of such a circuit will be assumed to be an and-circuit, an or-circuit, a not-circuit, or a delay circuit, for some specified temporal delay. Each element has one output wire which, however, may branch in order to serve several purposes simultaneously. (...) The and-circuits and or-circuits have two input wires each, while the not-circuits and the delay circuits have one input wire each. (shrink)

These sixteen essays were written in honor of Frederick B. Fitch. Each part of the volume treats an area of the logical enterprise which had special interest for Fitch. The four parts are entitled, respectively, "Metaphysics and Language," "Basic and Combinatorial Logic," "Implication and Consistency," and "Deontic, Epistemic, and Erotetic Logic.".

Résumé1Le rôle prlvilégié que joue l'implication « si … alors » dans la pensée donne à sa formalisation loglque une importance capitale. Mais la formalisation classique se heurte à certaines difficultés.2On montre, par la méthode L de Gentzen, que c'est la partie positive de la logique intuitionniste qui exprime au plus près l'idée intuitive de l'implication.3L'implication est liée à la négation. On est conduit à distinguer « réfutable », «absurde» et «faux».4L'analyse de ces notions peut se faire aussi par la (...) méthode N de Gentzen. Elle conduit à une certaine symétrie dans les résultats.5Un système S, dû à F. B. Fitch, conduit à une nouvelle sorte de négation.6La négation dans S peut s'interpréter comme «contraire aux faits».Zusammenfassung1Dei der besonderen Rolle der Implikation «wenn … dann »im Denken 1st deren logische Formalisierung von wesentlicher Bedeutung. Die klassische Formalisierung stösst auf gewisse Schwierigkeiten.2Gentzens Méthode L erweist, dass der positive Teil der intuitionistischen Logik der intuitiven Idee der Implikation am nächsten kommt.3Die Implikation ist an die Negation gebunden. Folgende Unterscheidungen ergeben sich: widerlegbar, unmöglich, falsch.4Die Analyse dieser Begriffe kann auch nach Gentzens Méthode N geschehen. Sie führt zu einer gewissen Symmetrie in den Ergebnissen.5Das logische System S, das F. B. Fitch aufgestellt hat, führt zu einer neuen Art der Negation.6Die Negation kann in S als «im Widerspruch zu den Tatsachen» interpretiert werden. (shrink)

First published in 1914, this volume by F. B. Jevons was designed as a response to the simple question: What is philosophy? Consisting of five separate lectures, the work throws light on the themes of philosophy and science, materialism and idealism, scepticism, practical philosophy, and the notion of the whole and its parts. The aim of the study was not simply to provide an answer to the question in the title, but to bring out the meaning of the question itself (...) and to demonstrate the inherent utilitarian significance of philosophy to everyone. As Jevons notes in the preface, 'Philosophy is a concern of the average man and of practical life, and should not be the monopoly of the professed student.'. (shrink)

Augustine’s metaphysics is a subject little studied, but often much criticized. Among the recent studies of Augustine’s metaphysics, Scott MacDonald’s interpretation of Augustine’s notion of goodness claims that Augustine’s account is incoherent. This suggests a reading of Augustine that is somewhat problematic. This article argues that much of the difficulty that MacDonald claims rests on a misunderstanding of Augustine’s views about the goodness of creation and existence and the corruptibility of created things. Augustine’s position takes for granted an understanding of (...) existence as a good and the participation of all things in the pre–eminent good, that is God. (shrink)

Nicholas Wolterstorff's Divine Discourse attempts to give philosophical warrant to the claim that ‘God speaks’. While Wolterstorff's argument depends largely on his appropriation of J.L. Austin's speech act theory, he also uses two narratives that for him demonstrate how ‘God speaks’. The first is the story of Augustine's conversion in the Confessions and the second is a story that Wolterstorff recounts about a certain ‘Virginia’. This study argues that what Wolterstorff claims to derive from Augustine's narrative for his view of (...) divine discourse is not fully supported by the Confessions, and that Augustine's interpretation of the words ‘tolle lege, tolle lege’, can be construed as a useful interpretation of an ambiguous sign. This is consistent with Augustine's understanding of the interpretation of texts in both the De doctrina christiana and the Confessions. In short, Augustine is far more open to the ambiguity of signs than Wolterstorffs's account suggests. (shrink)

Die Grieckischen Culten und Mythen in ihren Beziehungen zu den Orientalischen Religionen. Von O. Gruppe. Erster Band: Einleitung. Leipzig: Teubner. 1887. 14 Mk.

First published in 1900, this philosophical essay on Evolution questions how the acceptance of Evolution as scientific should influence the thoughts and actions of humankind from the perspective of morality and moral conduct. In his discussion, Frank B. Jevons deals with such subjects as pessimism and optimism towards evolutionary theory, the laws of motion and matter, and the importance of scientific evidence.

First published in 1900, this philosophical essay on Evolution questions how the acceptance of Evolution as scientific should influence the thoughts and actions of humankind from the perspective of morality and moral conduct. In his discussion, Frank B. Jevons deals with such subjects as pessimism and optimism towards evolutionary theory, the laws of motion and matter, and the importance of scientific evidence.

First published in 1900, this philosophical essay on Evolution questions how the acceptance of Evolution as scientific should influence the thoughts and actions of humankind from the perspective of morality and moral conduct. In his discussion, Frank B. Jevons deals with such subjects as pessimism and optimism towards evolutionary theory, the laws of motion and matter, and the importance of scientific evidence.

Iris Murdoch’s Metaphysics as a Guide to Morals ranges wide over the field of Western philosophical thought. Throughout the work, Murdoch proposes and enacts a form of philosophical inquiry that she believes supports a moral philosophy based on the idea of the good. One of her attempts, partly inspired by Paul Tillich and J. N. Findlay, centers on her critique and appropriation of the structure of the so-called “ontological argument” in Anselm’s Proslogion. This study assesses Murdoch’s accomplishment and the tenability (...) of the kind of Platonism she proposes against Anselm’s argument about the good in both the Monologion and the Proslogion. My claim is that Anselm’s conception of the good simply does not permit the kind of interpretation that Murdoch puts on the “ontological argument.”. (shrink)

First published in 1913, Jevons’ _Personality_ marries the disciplines of philosophy and psychology in order to question the existence of personality and the arguments surrounding it. Intriguingly, Jevons suggests that if a person can question their own personality and existence, by extension they can also question the personality and existence of God. The book is arranged into four chapters based on a series of lectures delivered in Oxford in 1912: these discuss such areas as the relationship between science, psychology, and (...) personality; the argument that "there are changes, but no things which change", and consequently there are changes, but no persons who change; and, the concepts of individualism and unity. (shrink)