This paper introduces Prior’s unpublished paper Aristotle on Logical Squares, which is deposited in the Bodleian Library and which discusses Greniewski’s definition of the \ operator, which Greniewski introduced in his paper Próba ‘odmłodzenia’ kwadratu logicznego. It is a unique attempt to formalize the square of opposition. Bendiek’s review, which is an important intermediary between Greniewski’s and Prior’s paper, is also mentioned here. Greniewski’s main motivation was to rejuvenate the traditional square of opposition in order to make a square of (...) opposition more precise. He did not investigate the history of the square of opposition. Prior’s approach differs a great deal from Greniewski’s one because he bases his analyses of Greniewski’s operator on Aristotle’s definitions of squares of oppositions. There are some queries, which arise due to the different aims of Greniewski and Prior and their different approach might have caused Prior’s effort to the approximation of Greniewski’s operator to Aristotle’s definitions of the squares of opposition was unsuccessful. (shrink)

The main aim of our paper is to identify the potential limits of Socratic dialogue in moral education. These limits will be identified using a) the original ancient writings preserving several versions of Socrates’ dialogue, and b) modern writing on the Socrates’ dialogue in moral education. We will determine whether these limits are to be found in the writing of Plato or Xenophon, or rather in the problems and paradoxes of this type of education. We assume that a historical exploration (...) of the original Socratic philosophy will help us to more easily identify the limits and problems in moral education. However, our intention is not to reject the Socratic dialogue as such, but merely to point out some of the potentially controversial aspects of its use in moral education. (shrink)

Complementary and alternative medicine is becoming increasingly popular in western countries, with estimates of CAM usage as high as 40%. This has prompted a change of attitude of the medical establishment: the initial dismissal of CAM is being replaced by a drive to integrate CAM into the mainstream. Two possible explanations for this integration thrust are considered. Firstly, integration could be motivated largely by cognitive interest in CAM. Secondly, integration could be mainly power-driven, aimed at controlling the alternative movement and (...) exploiting its capacity to make money. The second explanation seems more plausible, and is supported by data showing the paucity of research on CAM. The medical establishment does not sufficiently appreciate the challenge CAM poses, and does not consider its scientific appraisal to be a high priority. Instead, the allopathic community seems preoccupied with the opportunistic desire to protect its authority and social status. Such a discourse can become dogmatic, reluctant to revise critically the ‘accepted’ body of knowledge. Popper's critical rationalism could help to undercut dogmatism and encourage a critical, open-minded orientation of medical science. (shrink)

[Reason – critique – openess.. The Living legacy of the philosophy of K. R. Popper ].

The paper analyses empirical research results comparing the impact of the medium (traditional, paper-based vs. screen-based) on the reading process and text comprehension. It focuses on two analytical approaches—the first looks at the construction of cognitive maps of texts and the other the material aspects of the medium – which enable readers to orientate themselves and to explore and interpret the text more comprehensively. The paper discusses differences in how readers approach textual meaning according to experience of using digital technologies, (...) the text, and reader experience and abilities. It concludes by arguing that strengthening these individual experiences and abilities is key to effective inference of textual meaning. (shrink)

This text, titled The Responsibility of Educators, is the editorial of the second issue of the second volume of the journal Theology and Philosophy of Education.

At the beginning of modern logic, propositions were defined as unchangeable entities placed in a certain idealistic realm. These unchangeable propositions contain in themselves so-called indexical, i.e. the place, time and other circumstances of the utterance. This concept of the proposition, which is entitled eternalism, was and is still prevalent among analytic philosophers. Often even the term ‘proposition’ is identified with an idealistic entity located outside the real world. In my paper, I would like to focus on the concept of (...) propositions of two logicians who deviated from the standard understanding of propositions, Arthur N. Prior and Pavel Tichý. They were both proponents of temporalism, i.e. the view that propositions could change their truth-value over time. The paper will discuss the reasons why they were proponents of temporalism and compare their views. It claims that in Prior’s case, his metaphysical views were the main reasons he was a proponent of temporalism. In contrast, when Tichý presented his arguments for temporalism, he focused primarily on natural language. (shrink)

Since Kazimierz Twardowski introduced the notions of “symbolomania” and “pragmatophobia,” the relationship between logic and reality was the focus of the philosophers from the Lvov-Warsaw School — inter alia two prominent logicians of the group, Stanisław Leśniewski and Jan Łukasiewicz. Bolesław Sobociński has pointed out, however, that there was a contrast between their approach to logic and reality. Despite being members of the same philosophical group and even colleagues from the same department, their philosophical views on the position of logic (...) in reality differed considerably. Yet they both agreed that reality has a certain importance for logic and that logic could be valuable for reality. The aim of this paper is to introduce their divergent positions and describe in more detail how Leśniewski and Łukasiewicz understood the relationship between logic and the real world. (shrink)

In his paper ‘The logic of temporal discourse’, Pavel Tichý pointed out that contemporary systems of logic were unable to sufficiently formalise tenses. He therefore suggested temporal specification in transparent intensional logic (TIL), a system of logic that he developed. Discussing contemporary systems of logic, Tichý also took into account the system of Arthur N. Prior, who developed the first systems of modern temporal logic, and his criticism was also addressed to Prior. Tichý only focused, however, on Prior’s early systems (...) of temporal logic. Patrick Blackburn recently raised the awareness that Prior also developed systems of hybrid logic in his latest periods. From the point of view of temporal specification, this system is particularly interesting as the system has greater expressive power than Prior’s early systems of temporal logic. It could also consequently deal with the problematic specifications of tenses that Pavel Tichý pointed out. It is not only the formal criterion that make Tichý and Prior’s approach suitable for comparison. Both logicians shared similar views on time and logic. All these convictions also influenced their systems of logic. The aim of this paper is to demonstrate that the temporal propositions that Tichý introduced as problematic could be formalised in Prior’s hybrid temporal logic. I will also compare formalisations in TIL and hybrid logic and Tichý and Prior’s views that influenced their systems of logic. (shrink)

Con el objetivo de identificar la percepción de la ventaja intercultural evidenciada en la narración de hechos, este estudio busca contribuir en el entendimiento de las relaciones interculturales en ámbitos familiares mixtos entre individuos de diferente nacionalidad. A través de un estudio que ha recuperado el discurso de los miembros de ocho parejas checo-mexicanas, se muestra que la ventaja percibida se desprende de la adquisición de competencias interculturales. La información recabada se ha organizado mediante la evaluación de cuatro elementos que (...) definen la interculturalidad: relaciones de poder, comunicación intercultural, integración y alteridad cultural. El principal hallazgo indica que el contexto en el cual se han conformado las parejas mixtas checo-mexicanas se caracteriza por un equilibrio en la negociación de interés para formar metas vitales conjuntas. Dicha ventaja se materializa en la ampliación de la oportunidad para moverse entre dos países, sea para establecerse en el país de encuentro, sea para migrar al país del otro. La tendencia mostrada se ha sesgado hacia el país de la mujer. (shrink)

Stanisław Leśniewski postuloval systém logiky a základu matematiky, jenž se do značné míry liší od systému, který navrhli Russell a Whitehead ve své knize Principia Mathematica. Velmi odlišný je zejména Leśniewského kalkul jmen a pojetí jmen, jež jsou jeho součástí. Russellova teorie deskripcí hrála v historii filozofie nesrovnatelně důležitější roli než Leśniewského teorie, proto se snažili někteří Leśniewského pokračovatelé přiblížit Leśniewského pojetí jmen Russellově teorii. Existuje hned několik takových návrhů, tento článek se ale zaměřuje pouze na interpretaci, kterou navrhl Arthur (...) N. Prior. Prior interpretoval Leśniewského pojetí jmen jako třídová jména (class names). Tato interpretace je odmítána tak významnými badateli, jako je Peter Simons nebo Rafal Urbaniak. Podle Simonse neodpovídají třídová jména Leśniewského pojetí ontologie. Urbaniak o třídových jménech napsal, že Prior představil svou interpretaci nejasně. Cílem tohoto článku je ukázat, že pokud je na celý problém nahlíženo z formálního hlediska, může mít Priorovo pojetí opodstatnění. (shrink)

The paper compares Comenius’ usage of the terms unum, verum and bonum in his metaphysical writings both with the expression of the image of the Trinity in De civitate dei by Aurelius Augustinus and with the concept of existence as three basic movements in the philosophical work of Jan Patočka. The purpose of the text is to show, despite the differences in historical periods, language and life experience, the possible similarity or connection of the vision that Augustine, Comenius and Patočka (...) mediate in their works. (shrink)

According to Gabriel Marcel, no task is more important and more complex than looking for ways of confronting and overcoming despair. Therefore, the search for the essence of hope is the objective of this paper. Reference is made to the theme of the open soul in Henri Bergson’s, Gabriel Marcel’s, and Jan Patočka’s works. Such a soul is not centred in itself; moreover, according to Marcel, hope and soul are intrinsically linked together. Hope opens people towards the future. The concept (...) of hope in the biblical context is shown briefly, according to which hope is in God (Ps 62:5), while God is coming to man. At the same time, biblical texts sketch a pathway to hope, setting out from suffering through endurance and character (Rom 5:3–4). The paper stresses that hope takes root in dialogue and that a person is empowered to adopt hope as a gift. (shrink)

It is the editorial for the first issue of the second volume of the journal Theology and Philosophy of Education. The journal’s logo is described and interpreted here in the context of the journal’s aim. All the texts of the offered issue are briefly introduced here.

Theology and Philosophy of Education is a journal dedicated to education. However, in what respect does it deal with education? What is the situation of current education? What is the main role of the school today? All articles from the first issue of the third volume of the journal Theology and Philosophy of Education are presented.

Book review of KOPČÁKOVÁ, Slávka, (Ed.) – ORIŇÁKOVÁ, Slávka – ZUBAL, Pavol (2021) Tobias Gottfried Schröer (1791-1850). Estetika ako vízia lepšieho človeka. [Tobias Gottfried Schroer (1791-1850). Aesthetics as a vision of a better person.] Prešov: University of Prešov, Faculty of Arts. 321 p. ISBN 978-80-555-2767-3.

This paper presents the link between Arthur N. Prior and logicians that belonged to the Lvov-Warsaw School. Although certain members of the Lvov-Warsaw School influenced Prior’s views, the amount and the form of the impact are still under discussion. Prior also cooperated with some of them in the development of his systems of logic. This paper focuses on four main areas in which Prior admitted adopting ideas from the Lvov-Warsaw School: systems of propositional logic, the history of logic, modal and (...) temporal logic and ontology. Prior’s published works as well as his correspondence, which is stored in Prior’s Nachlass, are used to describe the influence. (shrink)

AbstractŁukasiewicz introduced a new methodological approach to the history of logic. It consists of the use of modern formal logic in the research of the history of logic. Although he was not the first to use formal logic in his historical research, Łukasiewicz was the first who used it consistently and formulated it as a requirement for a historian of logic. The aim of this paper is to present Łukasiewicz's contribution and the history of its formulation. In addition, the paper (...) will present its reception. There are two main themes in Łukasiewicz’s work on the history of logic. He discussed Stoic logic and Aristotle’s syllogistic. The second part of the paper focuses on current reception of Łukasiewicz’s contribution and on the question of whether there is a difference between knowledge about his contribution to Stoic logic and to Aristotle’s syllogistic, given that it has been hypothesised that Łukasiewicz’s contribution is currently more known among Aristotelian scholars than among those who focus on Stoic logic. Based on the papers that have appeared in the last five years at Web of Science and Scopus this hypothesis has not been confirmed. (shrink)

In the nineteenth century, philosophy was at a crossroads. While the natural and technical sciences were developing in an unprecedented fashion, philosophy seemed to be stalled. Inspired by the progress of the natural sciences, many philosophers attempted to make such progress in philosophy and make philosophy a truly scientific discipline. This effort was also reflected in the philosophy of the Lvov-Warsaw school. While its founder, Kazimierz Twardowski, following his teacher Franz Brentano, promoted psychology as a method of scientific philosophy, one (...) of his first students, Jan Łukasiewicz, was convinced that mathematical logic was such a method. To use mathematical logic as a tool, Łukasiewicz had to, however, argue convincingly that logic is an independent science and hence is not a part of psychology, i.e., arguing for anti-psychologism in logic. He initially adopted the arguments provided by Husserl, then celebrated as a proponent of anti-psychologism, and Frege’s views. When Łukasiewicz developed, however, his systems of many-valued logic, he denied almost all the principles that characterise Husserl and Frege’s anti-psychologism, i.e., the objectivity of the laws of logic, the existence of apodictic propositions, and the distinction between a priori and empirical sciences. He was, however, a proponent of anti-psychologism up to the end of his life. The aim of my paper is to introduce Łukasiewicz’s unique concept of anti-psychologism that significantly affected the views of mathematical logic in the Lvov-Warsaw School, and the views of his colleagues which helped him develop the concept. (shrink)

Although Łukasiewicz and Quine do not share many common views, they agreed on one important point in the 1950s: they both denied the distinction between empirical and a priori sciences. This agreement might be surprising as this denial was rather controversial at that time. This paper focuses on Quine’s and Łukasiewicz’s denials of the distinction between empirical and a priori sciences, and proposes three possible answers to the question of why both formulated the same conclusion at a similar time. Firstly, (...) it discusses Quine’s possible influence on Łukasiewicz as Łukasiewicz agreed with Quine’s criticism of modality at that time. Secondly, it considers the possibility that Quine was affected by Łukasiewicz via his debates with Łukasiewicz’s student, Tarski. Lastly, it takes into account the possibility that both philosophers were inspired by an external source, namely the rise of quantum mechanics. (shrink)

The paper focuses on the so-called problemata, a topic that has not yet evoked much scholarly interest. In the beginning of the 15th century, problemata regularly occurred in the quodlibetal handbooks of the Prague University masters alongside the usual quaestiones. The paper introduces a catalogue of problemata found in the quodlibetal handbooks of the Prague University masters active between 1400 and 1417, i.e. John Arsen of Langenfeld, Matthias of Knín, John Hus, Simon of Tišnov, and Procopius of Kladruby. Moreover, it (...) provides a basic overview of how the individual authors of quodlibetal disputations formulated their problemata and the sources they used. (shrink)

Present study sheds more light on the conceptualization of citizenship and civic engagement among majority and minority youth. In order to understand the meanings of citizenship, fourteen focus groups were conducted with young people aged 16–26, with both civically engaged and disengaged young ethnic Czechs, Roma, and Ukrainians. Results suggest that young people understand the citizenship as having multiple dimensions (legal and personal, and in terms of rights and responsibilities) and civic engagement as being focused on various aspects. The way (...) people described their position within society was influenced by the social background and mirrored in the views on full citizenship. (shrink)

In recent times there has been a shift in the interpretation of Aristotle’s logic. Many researchers have pointed out that the concept of existential import appears in Aristotle’s logic and philosophy, and that Aristotle worked with the concept of empty terms although his concept differs from that which is used in modern logic. Additionally, his search for the “culprits” of old and incorrect interpretation has been tied to the development of modern interpretation. Apart from the traditional concept of the logical (...) square and syllogistics, where the assumption of non-emptiness of terms was widely used, J. L. Łukasiewicz is also labeled as an offender. This article tries to show that Łukasiewicz was aware that Aristotle was also dealing with empty terms. His restriction of syllogistics to only non-empty terms therefore differs significantly from the approach of traditional logicians. (shrink)

Arthur Prior was one of the logicians who participated in the invention of the possible worlds’ semantics. The ontology, which is connected with his systems of modal logic, is unique. Prior tried to reduce the number of abstract entities as much as possible. Hence he did not elect to introduce possible worlds and possibilia into his ontology. In addition, he held a reductionist view, which is called modal actualism by Fine or modalism by Melia. Prior was inspired by various authors (...) but this paper mainly discusses the influence of two prominent sources, Wittgenstein and logicians from Warsaw School. Prior acknowledged Wittgenstein’s influence, when he discuss the view that possible worlds consist of propositions. The second important feature of Prior’s concept is the denial of the real existence of possible worlds and the denial of the existence of entities which are in them. It was probably enabled by Prior’s adoption of some systems of logic invented by logicians from the Warsaw school, especially Lesniewski’s and Łukasiewicz’s systems. (shrink)

Jan Łukasiewicz is known primarily as the founder of the three-valued system of logic. It is also generally renowned that his reason for introducing many-valued systems of logic was an attempt to refute determinism. When he developed the three-valued and n-valued logic, he employed these systems in his arguments against determinism. On the contrary, Łukasiewicz preferred the four-valued system of logic that is not suitable for a refutation of determinism in his latest period. It seems, however, that determinism still interested (...) Łukasiewicz, as he discussed its denial in his last work, the second edition of the book Aristotle’s syllogistic from the standpoint of modern formal logic. The aim of my paper is to introduce the issue and describe the relation of these two topics primarily in the latest period of Łukasiewicz’s work. There are several possible solutions to the issue. However, Łukasiewicz never addressed the issue clearly in his published works. Therefore, the solutions might be supported or contradicted by his unpublished works in the future. (shrink)

Non-invasive prenatal testing is an emerging form of prenatal genetic testing that provides information about the genetic constitution of a foetus without the risk of pregnancy loss as a direct result of the test procedure. As with other prenatal tests, information from NIPT can help to make a decision about termination of pregnancy, plan contingencies for birth or prepare parents to raise a child with a genetic condition. NIPT can also be used by women and couples to test purely ‘for (...) information’. Here, no particular action is envisaged following the test; it is motivated entirely by an interest in the result. The fact that NIPT can be performed without posing a risk to the pregnancy could give rise to an increase in such requests. In this paper, we examine the ethical aspects of using NIPT ‘purely for information’, including the competing interests of the prospective parents and the future child, and the acceptability of testing for ‘frivolous’ reasons. Drawing on several clinical scenarios, we claim that arguments about testing children for genetic conditions are relevant to this debate. In addition, we raise ethical concerns over the potential for objectification of the child. We conclude that, in most cases, using NIPT to test for adult-onset conditions, carrier status or non-serious traits presenting in childhood would be unacceptable. (shrink)

Empirical evidence suggests that some health professionals believe consent procedures for the emerging technology of non-invasive prenatal diagnosis (NIPD) should become less rigorous than those currently used for invasive prenatal testing. In this paper, we consider the importance of informed consent and informed choice procedures for protecting autonomy in those prenatal tests which will give rise to a definitive result. We consider whether there is anything special about NIPD that could sanction a change to consent procedures for prenatal diagnosis or (...) otherwise render informed decision-making less important. We accept the claim that the absence of risk of miscarriage to some extent lessens the gravity of the decision to test compared with invasive methods of testing. However, we also claim that the definitive nature of the information received, and the fact that the information can lead to decisions of great significance, makes NIPD an important choice. This choice should only be made by means of a rigorous and appropriately supported decision-making process (assuming that this is what the pregnant woman wants). We conclude that, on balance, consent procedures for NIPD should mirror those for invasive testing, albeit without the need to emphasise procedure-related risk. (shrink)

This article argues that intersectional analyses of care work also need to include a temporal aspect. Drawing on ethnographic research on Slovak au pairs working in the UK and on interviews with both providers and employers of paid childcare in Slovakia, I examine how the temporariness of care work is created within both migrant and non-migrant settings. In particular, I demonstrate that both employers and providers conceptualise paid childcare as a temporary period in their lives and show the consequences of (...) this conceptualisation in their valuing of care work. In both examined cases, I focus on the role of care/welfare and migration regimes in the production of temporariness in care work and argue that both providers and employers of paid care construct their involvement in domestic work as a specific life course experience. While for au pairs, working stays in the UK represent a specific transition period from adolescence to adulthood, employers in Slovakia decide to employ particular types of domestic workers in relation to the particular developmental phases of their families and households. (shrink)

Propositional fuzzy logics given by a combination of a continuous SBL t-norm with finitely many idempotents and of an involutive negation are investigated. A characterization of continuous t-norms which, in combination with different involutive negations, yield either isomorphic algebras or algebras with distinct and incomparable sets of propositional tautologies is presented.

Štúdia analyzuje povahu etických otázok inherentných sociálnej práci a na vybraných problémoch ukazuje, ako a pre?o tieto etické otázky vznikajú. Zameriava sa na tri ústredné otázky, pod ktoré možno subsumova? vä?šinu etických problémov. Po prvé, pre?o dodržiava? morálne normy, aké dôvody máme preto, aby sme prijali morálku za rámec svojho konania? Po druhé, akým spôsobom majú by? distribuované zdroje a formy dobra? Po tretie, ktoré ?iny sú považované za hodnotné, dobré a žiaduce? Autorka obhajuje ideu, že na rozdiel od iných (...) profesií, definovanie cie?a, predmetu sociálnej práce a jej samotný výkon, tým, že pracuje s vylú?enými diskriminovanými a marginalizovanými skupinami je úzko previazaný na morálne a politické hodnoty. (shrink)

[Reason and common sense; the Humean perspective].

Recent scientific advances mean the widespread introduction of non-invasive prenatal diagnosis (NIPD) for chromosomal aneuploidies may be close at hand, raising the question of how NIPD should be introduced as part of antenatal care pathways for pregnant women. In this paper, the authors examine the ethical implications of three hypothetical models for using NIPD for aneuploidy in state-funded healthcare systems and assess which model is ethically preferable. In comparing the models, the authors consider their respective timings; how each model would (...) fit with current screening and diagnostic tests offered to pregnant women; the implications of offering NIPD at different stages of pregnancy; and the potential for each model to support reproductive autonomy and informed decision-making. The authors conclude by favouring a model that would be offered at 11–13 weeks gestation, alongside existing combined screening, provided that this is accompanied by measures to maximise informed decision-making, for example, provision of adequate pretest and post-test counselling. (shrink)