The pigeon-inspired optimization algorithm is a category of a newly proposed swarm intelligence-based algorithm that belongs to the population-based solution technique. The MKP is a class of complex optimization problems that have many practical applications in the fields of engineering and sciences. Due to the practical applications of MKP, numerous algorithmic-based methods like local search and population-based search algorithms have been proposed to solve the MKP in the past few decades. This paper proposes a modified binary pigeon-inspired optimization algorithm named (...) (Modified-BPIO) for the 0 - 1 multidimensional knapsack problem (MKP). The utilization of the binary pigeon-inspired optimization (BPIO) for solving the multidimensional knapsack problem came with huge success. However, it can be observed that the BPIO converges prematurely due to lost diversity during the search activities. Given the above, the crossover operator is integrated with the landmark component of the BPIO to improve the diversity of the solution space. The MKP benchmarks from the Operations Research (OR) library are utilized to test the performance of the proposed binary method. Experimentally, it is concluded that the proposed Modified-BPIO has a better performance when compared with the BPIO and existing state-of-the-arts that worked on the same MKP benchmarks. (shrink)

Translated from the edition in Pierre Damien: Lettre sur la toute-puissance divine. Introduction, texte critique, traduction et notes, André Cantin, ed. & tr., (“Sources Chrétiennes,” vol. 191; Paris: Les Editions du Cerf, 1972.

Histories of philosophy frequently depict the later eleventh century as the scene of a series of bouts between dialecticians and anti-dialecticians — Berengar vs. Lanfranc, Roscelin vs. Anselm — preliminaries to the twelfth century welterweight contest between Abelard and St. Bernard and — dare one say? — the thirteenth century heavy-weight championship between St. Thomas and St. Bonaventure.The bouts took place — no question about that — but whether the contestants can properly be characterized as dialecticians and anti-dialecticians is less (...) certain. Dialectics is logic, the third part of the trivium, and increasingly cultivated in the eleventh century; men like Berengar and Roscelin were plainly eager to apply the logical tools with which they had been equipped to the solution of intellectual problems. In particular they undertook the solution of certain central problems of theology — Berengar that of the Eucharist and Roscelin that of the Trinity — and it was this, we are told, that aroused the ire of the anti-dialecticians: if the aim of the dialecticians was to lay bare the mysteries of faith to the light of reason that of the anti-dialecticians was to protect those same mysteries from profanation. (shrink)

Contemporary critics have argued that medieval philosophers have transmitted a concept of divine omnipotence that is self-contradictory. This study of the first Latin treatise on omnipotence places it in its patristic and early medieval context and demonstrates that for Peter Damian divine omnipotence stands beyond contradictiion.

Le but de cet article est de presenter la signification du désert dans la pensée spirituelle de Pierre Damien. Dans une première partie on a présenté une courte biografie de Pierre Damien qui a permis de mieux comprendre ses choix dans la vie spirituelle. Dans la deuxième partie on a montré sa conception de la vie spirituelle qu’etait inspirée de la vie de son maïtre spirituel - saint Romuald. Pierre Damien a distingué deux voies dans la vie monastique : la (...) vie communautaire et la vie solitaire, érémitique. D’après lui la vie communautaire est une sorte de préparatoire pour la vie solitaire. Dans une troisième partie on a présenté la valeur et l’importance de la vie érémitique et la différence entre la vie communautaire et la vie solitaire. Pierre Damien a souligné que le désert et la cellule est l’endroit idéal pour le moine qui veut atteindre la perfection dans la vie spirituelle. La vie au désert est la voie la plus sûre pour atteindre le salut car elle nous sépare du monde et elle donne des conditions plus favorables à la prière, à la contemplation et aux pratiques ascétiques en union avec Dieu. Le désert est l’endroit où on s’exerce dans les vertus par le jeûne, le silence, et la prière, mais aussi un endroit de combat avec nos vices et avec Satan. Le désert est un passage indispensable pour ceux qui veulent atteindre le sommet dans la vie mystique. (shrink)

This is a well-written and interesting little book about a long and meandering letter drafted around 1067 by the great Christian reformer St. Peter Damian. It concerns the question of whether or not God can change the past. The letter is addressed to Desiderius, abbot of Monte Cassino and later Pope Victor III, but the object of Damian's concern apparently is certain dialecticians, possibly Berengar of Tours or Anselm of Besate, who put too great a stress on (...) the capacity of reason to grasp truth independently of Scripture. (shrink)

This reissue of his collection of early essays, Logico-Linguistic Papers, is published with a brand new introduction by Professor Strawson but, apart from minor ...

I define two metaphysical positions that anti-physicalists can take in response to Jonathan Schaffer’s ground functionalism. Ground functionalism is a version of physicalism where explanatory gaps are everywhere. If ground functionalism is true, arguments against physicalism based on the explanatory gap between the physical and experiential facts fail. In response, first, I argue that some anti-physicalists are already safe from Schaffer’s challenge. These anti-physicalists reject an underlying assumption of ground functionalism: the assumption that macrophysical entities are something over and above (...) the fundamental entities. I call their position “lightweight anti-physicalism.” Second, I go on to argue that even if anti-physicalists accept Schaffer’s underlying assumption, they can still argue that the consciousness explanatory gap is especially mysterious and thus requires a special explanation. I call the resulting position “heavyweight anti-physicalism.” In both cases, the consciousness explanatory gap is a good way to argue against physicalism. (shrink)

Panpsychists aspire to explain human consciousness, but can they also account for the physical world? In this paper, I argue that proponents of a popular form of panpsychism cannot. I pose a new challenge against this form of panpsychism: it faces an explanatory gap between the fundamental experiences it posits and some physical entities. I call the problem of explaining the existence of these physical entities within the panpsychist framework “the missing entities problem.” Spacetime, the quantum state, and quantum gravitational (...) entities constitute three explanatory gaps as instances of the missing entities problem. Panpsychists are obliged to solve all instances of the missing entities problem; otherwise, panpsychism cannot be considered a viable theory of consciousness. (shrink)

This paper presents a novel argument against one theoretically attractive form of panpsychism. I argue that “idealist panpsychism” is false since it cannot account for spacetime’s structure. Idealist panpsychists posit that fundamental reality is purely experiential. Moreover, they posit that the consciousness at the fundamental level metaphysically grounds and explains both the facts of physics and the facts of human consciousness. I argue that if idealist panpsychism is true, human consciousness and the consciousness at the fundamental level will have the (...) same metrical structure. However, as I demonstrate, human consciousness does not exhibit the same metrical structure as spacetime. Consequently, the idealist panpsychist faces an explanatory gap between the fundamental consciousness she posits and spacetime. Idealist panpsychism is incompatible with the existence of such an explanatory gap. Thus, idealist panpsychists must close this explanatory gap (which I argue they lack the resources to do), or idealist panpsychism is false. (shrink)

In this paper, I present an interpretation of Kant’s view that reason’s hypostasis of the idea of a sum-total of reality is dogmatic and illegitimate. In the section on the ‘Transcendental Ideal’, the second section of the Ideal of Pure Reason chapter in the Critique of Pure Reason, Kant starts by describing reason’s procedure from the affirmation of the principle of thoroughgoing determination to the hypostasis in question. According to the interpretation I defend, the argument for hypostasis deployed in this (...) section constitutes an improvement upon an argument defended by the pre-critical Kant himself in his 1673 essay “The Only Possible Argument in Support of a Demonstration of the Existence of God”. By making reference to the concept of omnitudo realitatis, the argument in the ‘Transcendental Ideal’ section presents a much more radical and convincing interpretation of the thesis that ‘possibility presupposes actuality’. Second, I present transcendental idealism and its related distinction between objects of sense and objects in general as the main dissuasive argument of the critical philosopher against hypostasis. Finally, I consider an argument against hypostasis that is independent of transcendental idealism: the threat of set-theoretical paradoxes if we hypostatize the relevant idea, intended as the concept of an absolutely comprehensive totality. (shrink)

Berkeley is popular in the philosophical tradition as the philosopher who denied the existence of matter in favor of spiritual substance. His esse est percipi thesis is understandably seen as a recipe for subjective idealism. While there is a point to this reading of Berkeley, it remains to be seen whether it does justice to the full significance of Berkeley’s philosophy. In Berkeley’s scholarship consequently the traditional understanding of Berkeley as a subjective idealist has been challenged by scholars such as (...) Jessop and Ardley who argue that Berkeley is better understood as a common sense realist. In approaching Berkeley’s Immaterialism from the standpoint of the philosophical issues raised by the emergence of modern science, this book is a sympathetic reconstruction of Berkeley’s philosophy. The contention is that if approached in this manner, Berkeley’s opposition to philosophical materialism not only emerges as an attempt to overcome false abstractions but it also becomes possible to make sense of Berkeley’s claimed alliance with common sense in his battle against philosophical materialism. While the realist portrait of Berkeley that emerges from this exercise is not free of difficulties, it arguably offers us a fuller conspectus of Berkeley’s immaterialism. (shrink)

Plotinus on the Soul is a study of Plotinus' psychology, which is arguably the most sophisticated Platonist theory of the soul in antiquity. Plotinus offers a Platonist response to Aristotelian and Stoic conceptions of the soul that is at the same time an innovative interpretation of Plato's Timaeus. He considers the notion of the soul to be crucial for explaining the rational order of the world. To this end, he discusses not only different types of individual soul but also an (...) entity that he was the first to introduce into philosophy: the so-called hypostasis Soul. This is the first study to provide a detailed explanation of this entity, but it also discusses the other types of soul, with an emphasis on the human soul, and explains Plotinus' original views on rational thought and its relation to experience. (shrink)

ABSTRACT In this article, the first author provides a summary and translation from the Latin of an important early medical lecture on vampires by Nils Retzius. The lecture was delivered in Sweden, at Lund University, in 1737, and was published almost immediately thereafter. This important text has been overlooked by modern scholars of vampires. This article will bring the lecture back into circulation in its first English translation. The second author then offers an analysis of the intellectual background to this (...) rational debunking of vampires. He demonstrates how Retzius’s attempt at a comprehensive rational explanation for vampires, typical of much Enlightenment thinking, nevertheless employs a fusion of Galenic medical thinking with more modern medical and psychosomatic notions of medicine, as well as certain Lutheran notions concerning the devil and the spirit world. His argument scotches the belief in the idea of sympathetic magic affecting the dreams of the living, while emphasising the psychosomatic effects of the imagination on the physical body. (shrink)

Since its inception, donor conception practices have been a reproductive choice for the infertile. Past and current practices have the potential to cause significant and lifelong harm to the offspring through loss of kinship, heritage, identity, and family health history, and possibly through introducing physical problems. Legislation and regulation in Australia that specifies that the welfare of the child born as a consequence of donor conception is paramount may therefore be in conflict with the outcomes. Altering the paradigm to a (...) child-centric model, however, impinges on reproductive choice and rights of adults involved in the process. With some lobby groups pushing for increased reproductive choice while others emphasise offspring rights there is a dichotomy of interests that society and legislators need to address. Concepts pertaining to a shift toward a child-centric paradigm are discussed. (shrink)

A complete system of classical Aristotelian logic intended for honors high school and college.

The present study aimed at investigating the heavy metals concentrations in the soils around “Larga de Sus” abandoned mine, evaluating the potential ecological risk of heavy metal pollution and highlighting ethical aspects related to risk assessment, ecological restoration, and soil remediation. The results of the chemical analysis showed that the soil in the study area is highly polluted with heavy metals since the average concentrations of Pb, and Ni in soil exceed their corresponding threshold established by the Romanian legislation. The (...) potential ecological risk index method developed by Hakanson was used to assess the potential risk of heavy-metal pollution. The results indicated that Pb and Ni showed severe and considerable potential ecological risk, while Cr had lightly ecological risk. In this case, remediation should be focused only on Pb or on all heavy metals even if they have lightly ecological risk? A scientific management technique cannot logically prescribe which choices should be selected. The interaction between human activity and the environment is complicated and difficult to quantify and risk management cannot and should not be based simply on risk assessment results. What is needed to make the right choice of the most appropriate alternative that fits our personality, culture, religion, and desires? The moral and ethical implications of ecological restoration and soil remediation have to be incorporated within the decision-making process in order to make optimum sustainable decisions and to achieve real environmental protection. (shrink)

Ohne Rücksicht auf disziplinäre Schranken bringt dieses Buch verschiedene nicht-reduktionistische Lerntheorien miteinander ins Gespräch. In einem offenen Diskurs, der die Konzepte zueinander in Beziehung setzt, werden die unterschiedlichen Perspektiven kritisch abgewogen und hinsichtlich ihrer Stärken und Schwächen diskutiert.

Delo se loteva vprašanja aktualnosti pojma subjekta v filozofiji in politiki skozi analizo tistih avtorjev, ki so ga domnevno najbolj radikalno pokopali: pokaže, da vznik radikalno novega in problematika subjekta zavzema osrednje mesto v Deleuzovi filozofiji, kakor tudi v Lyotardovi pozni misli posvečeni praznini, v Foucaultovi obravnavi biopolitike in biooblasti, v delu Negrija in Hardta o Imperiju, ter nazadnje v Badioujevi predelavi temeljnih filozofskih kategorij biti, resnice in subjekta, na osnovi katerih je dandanes znova možna renesansa filozofije. Ta ima po (...) Badiouju štiri razsežnosti, ki se v delu Vznik subjekta nenehno prepletajo: »V osnovi želja filozofije implicira razsežnost upora: ni filozofije brez nezadovoljstva mišljenja v njegovem soočenju s svetom, kakršen je. Pa vendar želja filozofije vključuje tudi logiko: to je, prepričanje v moč argumenta in uma.«. (shrink)

The spread of the COVID-19 pandemic quickly necessitated digital learning, which bore challenges for all pupils but especially for groups disadvantaged in a virtual classroom. As some studies indicate persistent differences between boys and girls in use of technologies and related skills, the aim of this study was to investigate gender differences in the digital learning environment students faced in spring 2020. Previous studies investigating gender differences in digital learning largely used biological sex as the only indicator of gender. This (...) study includes both biological sex and gender role self-concept in order to investigate the role of gender in different components of this stereotyped domain in a more differentiated way. A total of 19,190 Austrian secondary school students participated in an online study in April 2020 and answered questions regarding their competence beliefs, intrinsic value, engagement, and perceived teacher support in digital learning during the pandemic-induced school closures. Results showed higher perceived teacher support, intrinsic value, and learning engagement among girls than boys, while no significant sex differences were found in competence beliefs regarding digital learning. Furthermore, our results indicated clear benefits of an androgynous gender role self-concept for all studied components of digital learning. Implications of the findings for theory and practice are discussed. (shrink)

Paraconsistent logics are logical systems that reject the classical principle, usually dubbed Explosion, that a contradiction implies everything. However, the received view about paraconsistency focuses only the inferential version of Explosion, which is concerned with formulae, thereby overlooking other possible accounts. In this paper, we propose to focus, additionally, on a meta-inferential version of Explosion, i.e. which is concerned with inferences or sequents. In doing so, we will offer a new characterization of paraconsistency by means of which a logic is (...) paraconsistent if it invalidates either the inferential or the meta-inferential notion of Explosion. We show the non-triviality of this criterion by discussing a number of logics. On the one hand, logics which validate and invalidate both versions of Explosion, such as classical logic and Asenjo–Priest’s 3-valued logic LP. On the other hand, logics which validate one version of Explosion but not the other, such as the substructural logics TS and ST, introduced by Malinowski and Cobreros, Egré, Ripley and van Rooij, which are obtained via Malinowski’s and Frankowski’s q- and p-matrices, respectively. (shrink)

Infectious logics are systems that have a truth-value that is assigned to a compound formula whenever it is assigned to one of its components. This paper studies four-valued infectious logics as the basis of transparent theories of truth. This take is motivated as a way to treat different pathological sentences differently, namely, by allowing some of them to be truth-value gluts and some others to be truth-value gaps and as a way to treat the semantic pathology suffered by at least (...) some of these sentences as infectious. This leads us to consider four distinct four-valued logics: one where truth-value gaps are infectious, but gluts are not; one where truth-value gluts are infectious, but gaps are not; and two logics where both gluts and gaps are infectious, in some sense. Additionally, we focus on the proof theory of these systems, by offering a discussion of two related topics. On the one hand, we prove some limitations regarding the possibility of providing standard Gentzen sequent calculi for these systems, by dualizing and extending some recent results for infectious logics. On the other hand, we provide sound and complete four-sided sequent calculi, arguing that the most important technical and philosophical features taken into account to usually prefer standard calculi are, indeed, enjoyed by the four-sided systems. (shrink)

An application of the Method of Analysis of Relational Complexity (MARC) to suppositional reasoning in the knight-knave task is outlined. The task requires testing suppositions derived from statements made by individuals who either always tell the truth or always lie. Relational complexity (RC) is defined as the number of unique entities that need to be processed in parallel to arrive at a solution. A selection of five ternary and five quaternary items were presented to 53 psychology students using a pencil (...) and paper format. A computer-administered version was presented to 50 students. As predicted, quaternary problems were associated with higher error rates and longer response times than ternary problems. The computer-administered form was more difficult than the pencil and paper version of the test. These differences are discussed in terms of RC theory and alternative processing accounts. Together, they indicate that the relational complexity metric is a useful and parsimonious way to quantify complexity of reasoning tasks. (shrink)

Where does the impetus towards ethical theory come from? What drives humans to make values explicit, consistent, and discursively justifiable? This paper situates the demand for ethical theory in human life by identifying the practical needs that give rise to it. Such a practical derivation puts the demand in its place: while finding a home for it in the public decision-making of modern societies, it also imposes limitations on the demand by presenting it as scalable and context-sensitive. This differentiates strong (...) forms of the demand calling for theory from weaker forms calling for less, and contexts where it has a place from contexts where it is out of place. In light of this, subjecting personal deliberation to the demand turns out to involve a trade-off. (shrink)

The Renaissance sceptic and medical doctor Francisco Sanchez has been rather unduly neglected in scholarly work on Renaissance scepticism. In this paper I discuss his scepticism against the background of the ancient distinction between Academic and Pyrrhonian scepticism. I argue that Sanchez was a Pyrrhonist rather than, as has been claimed in recent years, a mitigated Academic sceptic. In keeping with this I shall also try to show that Sanchez was crucially influenced by the ancient medical school of empiricism, a (...) school closely allied with Pyrrhonism. (shrink)

In this article we revisit a number of disputes regarding significance logics---i.e., inferential frameworks capable of handling meaningless, although grammatical, sentences---that took place in a series of articles most of which appeared in the Australasian Journal of Philosophy between 1966 and 1978. These debates concern (i) the way in which logical consequence ought to be approached in the context of a significance logic, and (ii) the way in which the logical vocabulary has to be modified (either by restricting some notions, (...) or by adding some vocabulary) to keep as much of Classical Logic as possible. Our aim is to show that the divisions arising from these disputes can be dissolved in the context of a novel and intuitive proposal that we put forward. (shrink)

This paper extends Fitting's epistemic interpretation of some Kleene logics, to also account for Paraconsistent Weak Kleene logic. To achieve this goal, a dualization of Fitting's "cut-down" operator is discussed, rendering a "track-down" operator later used to represent the idea that no consistent opinion can arise from a set including an inconsistent opinion. It is shown that, if some reasonable assumptions are made, the truth-functions of Paraconsistent Weak Kleene coincide with certain operations defined in this track-down fashion. Finally, further reflections (...) on conjunction and disjunction in the weak Kleene logics accompany this paper, particularly concerning their relation with containment logics. These considerations motivate a special approach to defining sound and complete Gentzen-style sequent calculi for some of their four-valued generalizations. (shrink)

Ewa Domańska, Professor at the Adam Mickiewicz University in Poznań (Poland) and Stanford University (USA), historian of historiography and methodologist of history, formulated interesting comments about the state of humanities and social sciences. The development of interdisciplinary research causes the interpenetration of different disciplines. Although this kind of research is promising, inspiring as well as influencing the development of science, careless research may cause some threats in the longer term. According to Domańska, the lack of qualifications and reliability in this (...) area (especially in the area of theory and methodology) undermines the authonomy of the main disciplines and decline in the professionalism of research. This led the author to create the project, which aims to defend the independence of the threatened disciplines as well as their ‘re-professionalisation’. It can be achieved by strongly emphasizing the role of theory in science; a strong embeddement of a discipline in the theory. Domańska’s concept can be a recipe, which is a dichotomic project. Firstly, it supposes a ‘practical methodology’, which is a constructing of the theory thanks to empirical research material. Secondly, it supposes a ‘virtue epistemology’, which is the ethical aspect of the researcher’s attitude and his work. The aim of the paper is to discuss Domańska’s project and underline the originality of her concept in the context of economic and social sciences. The economic history is a specific discipline which develops at the crossroad of history and economics. It lets me put forward the thesis that Domańska’s suggestions are relevant to the research of economic history. I will show what cognitive chances are the result of the ontology of economic history. I will question what the possible threats are for the main disciplines (history and economics) as a result of the lack of professionalism in the interdisciplinary research of the economic past, and ask if Domańska’s project is attractive for the economic history research thanks to the strong setting in the ‘practical methodology’ in the theory. I also ask what the role of new theoretical approaches in that area is, and whether it is possible to formulate innovatory conceptions in the economic history. Finally, I question the role of ‘virtue epistemology’ or the ethical aspect of an economic historian’s work. (shrink)

In the last 150 years, the ambiguous and enigmatic 81 chapters of the Tao Te Ching have been translated, interpreted and adapted into the English language more than 100 times. The Tao and its subtle philosophy is currently being actively assimilated into mainstream western culture as evidenced by the popularity and volume of Taoist works. The purpose of this study was to analyse this phenomenon. First, a database of English translations of the Tao Te Ching was established. This database documents (...) the vast number of Tao Te Ching translations in print from 1868 to the present. Second, specific chapters of selected English translations of the Tao Te Ching were compared using holistic and content analysis. The holistic methods focused on the overall semantic connotation of the selected chapters. The specific (linguistic) analysis methods entailed the use of a computerised content analysis program (hyperRESEARCH for Macintosh). Through these inquiries, a specific understanding of the cross-cultural relationship between East and West was investigated. (shrink)

Though recent years have seen a proliferation of critical histories of international law, their normative significance remains under-theorized, especially from the perspective of general readers rather than writers of such histories. How do critical histories of international law acquire their normative significance? And how should one react to them? We distinguish three ways in which critical histories can be normatively significant: (i) by undermining the overt or covert conceptions of history embedded within present practices in support of their authority; (ii) (...) by disappointing the normative expectations that regulate people’s reactions to critical histories; and (iii) by revealing continuities and discontinuities in the functions that our practices serve. By giving us a theoretical grip on the different ways in which history can be normatively significant and call for different reactions, this account helps us think about the overall normative significance of critical histories and how one and the same critical history can pull us in different directions. (shrink)

The aim of my paper is to assess in a critical way the views presented by Graeme Smith in his book _A Short History of Secularism_ as well as in his paper _Talking to Ourselves: An Investigation into the Christian Ethics Inherent in Secularism_. According to Smith, secular Western societies are underpinned by Christian ethics. An example of a moral norm that – in Smith’s opinion – derives from medieval Christianity and shapes the moral condition of the members of contemporary (...) societies, is the concern about the poor. My criticism of Smith’s thesis is based on the distinction between moral norms and the ways of justifying them. Referring to this distinction, my objective is to show that certain norms which appear to be the same cannot be treated as identical due to the significant differences in their justification. (shrink)

When offering constructions of political values, it is common to generally strive for unity, i.e., to aim at principled definitions and the reduction of normative conflict. In this article, by contrast, I argue that we should aim to construct broad and conflicting concepts of the central liberal democratic values of liberty and equality. Taking my cue from an under-appreciated debate between Ronald Dworkin and Bernard Williams, I suggest that the demand for unity derives its appeal from a juridical model of (...) political value construction, which assumes the unified perspective of public decision-making. But while this model may be apt for constructing institutional rights, the construction of the political values liberty and equality had better operate according to a political model, which focuses on the perspective of citizens that live in a relationship of political opposition. Not only is there no demand for unity from that perspective, but there is a positive demand for political plurality: we need to draw on broad and conflicting concepts of liberty and equality if we are to respect the claims of fellow citizens with whom we have value-based political disagreements. (shrink)

This book examines the centrality of integrity in relation to a variety of philosophical and psychological concerns that impinge upon the ethical life.