An old and well-known objection to non-classical logics is that they are too weak; in particular, they cannot prove a number of important mathematical results. A promising strategy to deal with this objection consists in proving so-called recapture results. Roughly, these results show that classical logic can be used in mathematics and other unproblematic contexts. However, the strategy faces some potential problems. First, typical recapture results are formulated in a purely logical language, and do not generalize nicely to languages containing (...) the kind of vocabulary that usually motivates non-classical theories—for example, a language containing a naïve truth predicate. Second, proofs of recapture results typically employ classical principles that are not valid in the targeted non-classical system; hence, non-classical theorists do not seem entitled to those results. In this paper, we analyze these problems and provide solutions on behalf of non-classical theorists. To address the first problem, we provide a novel kind of recapture result, which generalizes nicely to a truth-theoretic language. As for the second problem, we argue that it relies on an ambiguity and that, once the ambiguity is removed, there are no reasons to think that non-classical logicians are not entitled to their recapture results. (shrink)

Although Auriol’s philosophical psychology has received increasing attention among contemporary scholars in medieval philosophy, his use of connotation has gone largely unnoticed. The aim of this paper is to delve into Auriol’s definition of cognition as a connotation. In his view, cognizing is nothing more than making things appear to the mind. Each concept is the extra-mental particular plus its property of being cognized by or appearing to the mind. It is nothing other than a real individual co-signifying or connoting (...) its being conceived. Being thought as a connotation, then, for Auriol intellectual cognition ultimately describes the following experience: the appearance of something to and its conscious reception by a cognizer. (shrink)

The infinitary function of the truth predicate consists in its ability to express infinite conjunctions and disjunctions. A transparency principle for truth states the equivalence between a sentence and its truth predication; it requires an introduction principle—which allows the inference from “snow is white” to “the sentence ‘snow is white’ is true”—and an elimination principle—which allows the inference from “the sentence ‘snow is white’ is true” to “snow is white”. It is commonly assumed that a theory of truth needs to (...) satisfy a transparency principle to fulfil the infinitary function. Picollo and Schindler (Erkenntnis 83:899–928, 2017) argue against this idea. They prove that, given certain assumptions, an elimination principle is sufficient for the purpose. Then, they pose a challenge: to show why we should incorporate introduction principles to our theory of truth. In this essay I take on the challenge. I show that, given the authors’ assumptions, an introduction principle is also sufficient to perform the infinitary function. (shrink)

In this paper, I examine Peter Auriol’s contribution regarding (i) what it is for a thing to be an intention or a concept and (ii) what kind of relation connects the object cognized to the cognizing mind as soon as intellectual cognition is occurring. First, I consider Auriol’s criticism of Brito’s thesis, according to which intentions are the same as cognitive acts, and “being cognized,” or for a thing to be objectively in the mind, is just for there to be (...) a cognitive act directed at that thing. Then, I discuss Auriol’s thesis, according to which each and every act of thinking must be thought of as a connotative notion, that is, as something implying or connoting an intentional object appearing to the cognizer. In this regard, Auriol’s view, as opposed to Brito’s, allows him to think of “being cognized” as more than an extrinsic denomination of the object cognized, as well as to incorporate into intellectual cognition a phenomenon that proves to be unique to our cognitive life, viz. the fact that we consciously experience what we cognize while we cognize it. Finally, I offer some concluding remarks on Auriol’s doctrine, as well as a brief evaluation of his theory. (shrink)

Connexive logics are based on two ideas: that no statement entails or is entailed by its own negation (this is Aristotle’s thesis) and that no statement entails both something and the negation of this very thing (this is Boethius' thesis). Usually, connexive logics are contra-classical. In this note, I introduce a reading of the connexive theses that makes them compatible with classical logic. According to this reading, the theses in question do not talk about validity alone; rather, they talk in (...) part about (a property related to) the soundness of arguments. (shrink)

Narrative medicine explores the stories that patients tell; this paper, conversely, looks at some of the stories that patients are told. The paper starts by examining the ‘story’ told by the Shambaa people of Tanzania to explain the bubonic plague and contrasts this with the stories told by Ghanaian communities to explain lymphatic filariasis. By harnessing insights from memory studies, these stories’ memorability is claimed to be due to their use mnemonic devices woven into stories. The paper suggests that stories (...) can be unpatronising, informative, and appropriate vehicles for communicating medical information to all age groups across all cultures. (shrink)

Este artigo tem como objetivo rever a crítica que Peirce faz a uma definição de abdução como uma relação de probabilidade a partir das características. Parece consensual entre seus comentadores que, de fato, essa definição não se adequa ao conceito peirciano. Contudo, este artigo defende que não há uma desarmonia entre abdução e uma relação de probabilidade. Ao contrário, será defendido que, sendo a abdução composta de formação e seleção de hipóteses, essa relação de probabilidade poderia ter uma função na (...) parte de seleção de hipóteses. Para isso, será apresentada uma definição básica de abdução, seguida da proposta de relação de probabilidade entre características. As críticas a essa proposta serão apresentadas e será evidenciado que não se sustentam, abrindo, assim, a possibilidade da permanência dessa característica no conceito de abdução peirciana. (shrink)

When logicians work with multiple-conclusion systems, they use a metalinguistic comma ‘,’ to aggregate premises and/or conclusions. In this note, I present an analogy between this comma and Prior’s infamous connective tonk. The analogy reveals that these expressions have much in common. I argue that, indeed, the comma can be seen as a structural incarnation of tonk. The upshot is that, whatever story one has to tell about tonk, there are good reasons to tell a similar story about the comma (...) in typical multiple-conclusion systems, and vice versa. (shrink)

In [8] it is proved that all the intermediate logics axiomatizable by formulas in one variable, except four of them, are not strongly complete. We considerably improve this result by showing that all the intermediate logics axiomatizable by formulas in one variable, except eight of them, are not strongly ω-complete. Thus, a definitive classification of such logics with respect to the notions of canonicity, strong completeness, ω-canonicity and strong ω-completeness is given.

The aim of my dissertation is to investigate how universal concepts are formed according to the later medieval Franciscan theologian Peter Auriol (d. 1322). Specifically, in the dissertation I inquiry into the relation between Auriol's ontology - according to which only individuals, and not universals, have real, extra-mental existence - and his philosophical psychology, a study of how extra-mental particulars can give rise to universal concepts, according to Auriol's view. In the past academic year I refined the topic of my (...) PhD thesis in two ways : first, I have delineated the definitive table of content ; second, I have wrote down the results of my research. The thesis comprises two volumes. The second one contains a collation of Peter Auriol's,Reportatio II, d. 9, qq. 2 - 3. The text has been obtained by confronting two manuscripts, considered as the exemplars of the two main families that convey his Second Book of the Sentences: ms. Firenze, Biblioteca nazionale centrale, ms. conv. soppr. A.3.120 (Fb); (iii) il ms. Padova, Biblioteca Antoniana, ms. 161 scaff. IX (Pg). The first volume, instead, has been divided into five chapters: the first two offer a historical introduction, while the remaining three are dedicated to the study of Auriol's doctrine, starting from the analysis of the text proposed in the collation, then extending the investigation to all the documentary heritage available relating to the Franciscan master. The first chapter provides a survey of the main theories of the universals of the early fourteenth century, taking into account in particular the opinions of those thinkers who, like Duns Scotus, in addition to marking a philosophical era, have been significant for Auriol's developing of his theory of universals. These are: John Duns Scotus, Henry of Harclay, Walter Bulery and Hervaeus Natalis. In order to properly understand the philosophical proposal of the Doctor facundus, it is necessary to know how it fits into a debate that in the academic debate of the fourteenth century. The second chapter is mainly aimed at the identification of the sources of Rep. II, d. 9, qq. 2 - 3. In the quaestio secunda, Auriol deals with the foundation of the universals. In a.1, he discusses the opinion of multiwho he labels as 'platonic'. We tried, therefore, to detect the targets of his criticism. Burley, Wylton, Bacon, Duns Scotus have been identified as possible addresses. In a. 2 of the same question, Auriol analyzes the position of Duns Scotus on the common nature. It has been then hypothesized that the two articles - aa. 1-2 - has to be considered as a general presentation and specific case of it; as a thesis common to several forms of realism and the realism of one of its most important interpreters. The third chapter focuses Auriol's criticism of the different forms of realism reported in a. 1 and of Duns Scotus's theory, as it is found in a. 2. In both cases, Auriol reproaches the realists for breaking the unity of substance, into a multiplicity of formalitatesreally occurring in reand corresponding to the concepts of genus and difference. On the contrary, Auriol maintains that universal concepts have no unity in the extra-mental reality. Only individuals really exist and numerical unity the only fully existing unity. As a consequence, the unity of the universal concept is just similitudinaria,that is only given a concept. Successively, the criticisms that Auriol makes to the principle of individuation are considered. Generally speaking, everything that exists, insofar as it exists, is singular, according to him. It is a primitive fact and it is not, therefore, necessary to search for the causes of its individuation. Thus, mirroring the structure of the quaestio secunda, in q. 3, Auriol discusses, in the first place, Duns Scotus's position and secondly a group of theories, arisen during the scholastic debate between the end of the thirteenth and the beginning of the fourteenth century. Interestingly, to reconstruct this set of doctrines, Auriol follows almost literally the reconstruction that Scotus himself makes of the same theories in his Ordinatio. Now, relying on the assumption that everything that exists is individual, Auriol gives shape to the notions of individuality and singularity and their mutual difference. This is one of the hubs of the dissertation. According to Auriol, a singularity is an entity that does not admit the existence of other realities that can be considered as similar with it. In this sense, God is the only authentic singularity. Ordinary reality, on the other hand, is made up of individualities. An individuality is an entity that, being finite, does not exhaust in itself the totality of the species to which it belongs (as far as the species as such exists only in virtue of an act of the intellect), admits the existence of other realities conceivable as similar with it. Thus, inasmuch as reality is made up of individuals or individualities, the mind is able to form the corresponding universal concepts. Being finite, for Auriol, is the condition of the validity of universals. In this respect, the relation between the concept of individuality and that of singularity is taken into account. Subsequently, we analyze the function of the category of Quantity, as it is related to individuality. According to Auriol, Quantity has no individuating capacity. At most, in bodily substances, it functions as principle of distinction. Being, in fact, discrete realities, a material substance spatially ends where another one begins. The fourth chapter is a kind of juncture between the third one, in which the structure of the concrete individual is analyzed, and the fifth one, in which the cognitive side of the process of concept formation is discussed. What is discussed here are the rationes. According to Auriol, the rationesare the basic units that constitute the quiddity of each individual and serve to direct our thought to form certain concepts. Each concept is the concept of a ratio,indeed. In this respect, Auriol claims that, say, Socrates has the rationes substance, corporeality, sensitivity, rationality. Additionally, rationes of the same type occurring in different objects are "maximally similar" (simillimae). For example, the rationesof Socrates are utterly similar with those of Plato (Cf. Scriptum, d. 2, q. 1, a. 4). Therefore, although these rationes are non-universal characteristics - inasmuch as a ratio belongs to one and only one individual - due to their maximal similarity they do count as the extramental ground for our general concepts (Cf.II Sent., d. 9, q. 3, a. 1). According to these premises, Auriol can hold that different singulars can be mutually highly similar, without participating in the same common nature (Cf. II Sent., d. 9, q. 3, a. 3).At the same time, it is relevant to note these rationesdo not compromise the unity of an existing particular. Rather each ratiocoagulates into each other giving birth to the individual's ultimate ratio. This final ratiois an indivisible ratio (ratio atoma), which cannot be further specified or divided (II Sent., d. 9, q. 3). According to Auriol, then, the rationesqua rationesdo not exist in extra-mental reality. Rather, the exist as such only in virtue of an act of the intellect. This means that they have an ambiguous being. On the one hand, they indicate a nature that cannot be altered by the intellect. On the other, the need the mind's activity to exist as rationes. According to Auriol, therefore, the rationesare independent of any cognitive act, with regard to the content they express, while they depend on mind's activity with regard to their unity and their existence. Now, the opaqueness concerning the ontological consistency of rationesdirectly depends on Auriol's understanding of cognition. Chapter five mainly deals with the different stages of the process of formation of the universal concept. In this respect, the notion of impressiois what is firstly analyzed. The impressionescan be considered, for Auriol, as the rationesthat are 'deposited' in the intellect and constitute, in cooperation with the cognitive faculty, what the Franciscan theologian calls the actus intellectus. The intellectual act, according to Auriol, is an entity composed of the impressed similarity of the object and the intellectual power, in fact. Moreover, in his view, it is really identical to the intelligible species. Now, the identity that the Franciscan theologian establishes between these two noetic tools, which were traditionally considered as distinct, imposes a reinterpretation of the notion of species. Coinciding with the act, the species can no longer be considered as an entity juxtaposed to it, deputed to the activation of the cognitive process performed by the intellect. Indeed, all those theories of universal concepts that add other noetic tools to the act, be they a species, a quality, or something else, would necessarily compromise intellection, preventing it from having acquaintance with extra-mental reality. According to Auriol, considering intellectual cognition as a connotation allows us to avoid such inconveniences. According to this view, the intellectual cognition must be regarded as an activity that poses nothing but to allow something to appear to the cognizer. In this respect, the concept, for Auriol, is nothing but the real object qua appearingto the intellect, fully identical with the intellectual act in recto,while denominatively distinct in obliquo. In this perspective, the definition of intellection that the Franciscan theologian proposes is analyzed, trying, in particular, to determine the ontological status of the concept and its epistemological function. In conclusion, with this study we have tried to give an account of Auriol's philosophical attitude, of the scope of his theory of universals, focusing on the relationship between ontology and philosophical psychology. Using Auriol's texts and specifically the collation of Rep. II, d. 9, qq. 2 - 3, the answers to these questions were searched for in the words of the Franciscan theologian himself. The picture emerged is that of an autonomous, critical thinker, but perfectly inserted in the historical context in which he lives. A thinker who places himself, so to speak, halfway between Duns Scotus's realism and Ockham's nominalism, nevertheless succeeding, albeit with some opacity, in balancing an ontology in which the metaphysical priority is granted only to the individual and the universal concepts have a solid foundation and validity. (shrink)

This collection of essays explores the history of the book in pre-modern South Asia looking at the production, circulation, fruition and preservation of manuscripts in different areas and across time. Edited by the team of the Cambridge-based Sanskrit Manuscripts Project and including contributions of the researchers who collaborated with it, it covers a wide range of topics related to South Asian manuscript culture: from the material dimension and the complicated interactions of manuscripts with printing in late medieval Tibet and in (...) modern Tamil Nadu, to reading, writing, editing and educational practices, from manuscripts as sources for the study of religious, literary and intellectual traditions, to the creation of collections in medieval India and Cambodia, and the formation of the Cambridge collections in the colonial period. The contributions reflect the variety of idioms, literary genres, religious movements, and social actors of ancient South Asia, as well as the variety of approaches, interests and specialisms of the authors, and their impassionate engagement with manuscripts. (shrink)

A metainference is usually understood as a pair consisting of a collection of inferences, called premises, and a single inference, called conclusion. In the last few years, much attention has been paid to the study of metainferences—and, in particular, to the question of what are the valid metainferences of a given logic. So far, however, this study has been done in quite a poor language. Our usual sequent calculi have no way to represent, e.g. negations, disjunctions or conjunctions of inferences. (...) In this paper we tackle this expressive issue. We assume some background sentential language as given and define what we call an inferential language, that is, a language whose atomic formulas are inferences. We provide a model-theoretic characterization of validity for this language—relative to some given characterization of validity for the background sentential language—and provide a proof-theoretic analysis of validity. We argue that our novel language has fruitful philosophical applications. Lastly, we generalize some of our definitions and results to arbitrary metainferential levels. (shrink)

In this essay I will discuss the therapeutic application of philosophy in treating what I term “the moral casualties of war.” In doing so, I will develop an etiology of moral injury and focus upon the philosophical reasoning and insights that may be applied in an individual or group setting to foster an understanding of the warexperience as the first treatment step in a long and complex journey to healing.

In this essay I will discuss the therapeutic application of philosophy in treating what I term “the moral casualties of war.” In doing so, I will develop an etiology of moral injury and focus upon the philosophical reasoning and insights that may be applied in an individual or group setting to foster an understanding of the warexperience as the first treatment step in a long and complex journey to healing.

Aristóteles comparte con Platón la concepción de la forma como causa del ser y del conocimiento de las cosas. Sin embargo, un análisis de sus críticas a las Ideas muestra que encuentra en la separación de las Ideas y las cosas sensibles la aporía fundamental de la teoría platónica. Con el propósito de circunscribir el significado de “separación” aplicable a las Ideas, concentraremos nuestro estudio en dos objeciones: 1) el argumento que conduce al tercer hombre y 2) la inutilidad de (...) las Ideas como causas. En el primer caso, creemos que la separación entraña homonimia, por lo que la solución aristotélica implicará la comunidad de naturaleza entre el individuo y su esencia. En el segundo, la separación implica trascendencia o falta de contacto entre generante y generado, por lo que la solución aristotélica apuntará a concebir la forma de las entidades naturales como un principio inmanente, inseparable de la materia y del movimiento, pero a la vez eterno a través de su reproducción en otros individuos de la misma especie. Creemos que en ambas soluciones opera un principio de sinonimia, que constituye su propia contribución al problema de la separación. (shrink)

Saul Kripke proposed a skeptical challenge that Romina Padró defended and popularized by the name of the Adoption Problem. The challenge is that, given a certain definition of adoption, there are some logical principles that cannot be adopted—paradigmatic cases being Universal Instantiation and Modus Ponens. Kripke has used the Adoption Problem to argue that there is an important sense in which logic is not revisable. In this essay, I defend two independent claims. First, that the Adoption Problem does not entail (...) that logic is never revisable in the sense that Kripke addresses. Second, that, to assess whether an agent can revise their logic in the sense that Kripke addresses, it is best to consider a different definition of adoption, according to which Universal Instantiation and Modus Ponens are sometimes adoptable. (shrink)

v. 1. Presentazione de Biagia Catanzaro Gligora -- v. 2. Logica, totalità-reale e realtà -- v. 3. Anima e coscienza.

Peter Auriol argues that sensation and intellection are both passive and active. They are passive insofar as they involve the reception of species or impressions of extra-mental objects. They are active insofar as both senses and intellect process these species and produce an intentional object. The way in which the senses and the intellect receive and process their own impressions is quite different, though. While perception is beyond our control, Auriol claims that the imagination, and the activity of the agent (...) and possible intellect depend on an act of the will. His idea is that the will pushes the intellect to focus on one of the impressions it receives from external objects, so that the corresponding impression is allowed to be imprinted in the intellect itself and the relevant concept formed. This paper examines the role that Auriol attributes to the will in our intellectual cognition, inasmuch as it is able to determine both (i) what kind of impressions can be picked and then embedded into the mind and, (ii) consequently, which concepts the intellect will form. My view is that, by envisioning the intellect and the will as already interacting during the process of concept formation, and not just during that of choice-making, Auriol provides an account of the intellect and the will strongly integrated with one another, thus offering a unitary vision of our cognitive life. (shrink)

This paper comprises two parts. The first part is an introduction to Auriol’s moderate conceptualism, as it is presented in his Commentary on Book II of the Sentences, distinction 9, question 2, article 1. The second part is an edition of the text. In the introduction, I focus on Auriol’s use of the noetic tool of connotation. My thesis, in particular, is that connotation is a necessary prerequisite to his moderate conceptu- alism. To this purpose, the first part of this (...) introduction will be devoted to a brief presentation of Auriol’s conceptualism. In the second part, Auriol’s theory of essential predication will be presented. In the third part, I will present my claim that Auriol’s theory of essential predication can only be made sense of when read against the background of his theory of connotation as applied to intellectual cognition. Finally, I will offer a collation of Auriol’s Commentary on Book II of the Sentences, dis- tinction 9, question 2, article 1, obtained by collating eight manuscripts, which hand down Auriol’s text, that is, Firenze, Biblioteca nazionale centrale, ms. Conv. Soppr. B.6.121, Firenze, ms. Conv. Soppr. A. 3.120, Napoli, Biblioteca nazionale, ms. VII.C.3, Padova, Biblioteca Antoniana, ms. 161, scaff. ix, Paris, Bibliothèque nationale de France, ms. latin 15867; Pelplin, Biblioteka Seminarium duchownego, ms. 46/85, Vaticano (Città del), Biblioteca Apostolica, ms. Borgiano 404, Vaticano (Città del), Biblioteca Apostolica, ms. Vat. lat. 942. (shrink)

In the eighth question of his Quaestiones de ente, the Late Medieval Theologian William Farinier tackles the issue of the attribute agreement we normally experience between individuals of the same species. The sub ect of his discussion is whether the specific unity we attribute to particulars is something of which they are really endowed with, regardless of any cognitive activity. In sharp contrast with realist thinkers, such as Duns Scotus and Francis Meyronnes, he claims that this is not to be (...) the case. His idea is that specific unity is ontologically mind-dependent, while semantically mind-independent. This claim is not entirely original, though. As it turns out, Farinier makes large use of Auriol's view the matter to shape his own one. His explicit endorsement to some of the most typical aureolistic theses seems to make him one of the few known (for now) full-fledged aureolistae. (shrink)

Whereas several researches have been devoted to Auriol’s philosophical and theological works in the last fifty years, Auriol’s sermons have been basically neglected. The aim of this paper is to partially fill this gap, by focusing on one of Auriol’s sermons: the so-called De Compassione Virginis Sermo. The main argument defended here is that, while put into poetic and rhetorical language, Auriol’s theological insights lose nothing of their theoretical sharpness. They rather acquire an unexpected clarity and power of persuasion, of (...) which the De Compassione Virginis Sermo proves to be a remarkable example. In this regard, analyzing the formal structure of this sermon and examining the manner in which some of Auriol’s most notable tenets are presented there will provide an unusual, but still useful way to approach his rich thought. (shrink)

Henry of Harclay was a secular late medieval theologian who has been appointed Chancellor at Oxford in the first half of the fourteenth century. Due to the lack of edited texts, his Commentary on Book I of the Sentences is today largely ne- glected. The present contribution aims at offering a provisional edition of Sent. I, d. 1, qq. 1-4. These questions are devoted to human acts of fruition. The topics discussed here regard 1. whether God alone is the object (...) of fruition; 2. whether only rational creatures in the beatific state are able to perform an act of fruition; 3. whether human beings naturally love themselves more than God and, lastly, 4. whether fruition is the same as delight. The edition is preceded by a brief doctrinal introduction, which serves the purpose of providing a general outline of the text’s main contents. (shrink)

We introduce a suitable notion of eight-shaped curve in the product S × ℝ of a Suslin line S for the real line ℝ, and we prove that if S is dense in itself, then every collection of pairwise disjoint eight-shaped curves in S × ℝ is countable. This parallels a folklore result which holds for the real plane.

The use of critical exposition of previous doctrines is a methodological procedure usual in Aristotle. But the distinctive characteristic of Book I of the Metaphysics is that, rather than to establish a new doctrine, a review of predecessors serves to confirm the own concepts to be used in the evaluation of the doctrines examined. This imposition of own terms has cost him the charge of distorting historical understanding. With the detailed analysis of the criticisms of Plato's theory of Ideas in (...) Metaphysics I, 9, we intend to show a) that the criticism of manipulation and distortion of his predecessors' views overshadow the degree to which Aristotle's own positions emerge from a critical review of previous thought and b) that the imposition of own terms does not suppose a distortion but a proposal of solution to the problems that previous theories have left unresolved. (shrink)

The article presents a preliminary survey of textual reuse in Nepalese collections of j?takas and avad?nas, focusing in particular on three works: the Avad?na?ataka, the Divy?vad?na, and the Dv?vi??atyavad?nakath?. The reassessment of the manuscript tradition of these three Sanskrit collections, based on Nepalese manuscripts and Tibetan translations, sheds more light on the role of scribes in the creation of these collections and of the Nepalese avad?nam?l? literature. In particular, the great role played in the 17th century by the Nepalese scribe (...) and scholar Jayamuni in shaping the text of the Avad?na?ataka, the Divy?vad?na, and many other Buddhist narrative works is brought to light. The result of this preliminary survey shows that a study of this type of collections based on the available critical editions should be rethought in the light of the specific character of their manuscript and textual transmission in medieval and early modern Nepal. (shrink)

Recently, it has been proposed to understand a logic as containing not only a validity canon for inferences but also a validity canon for metainferences of any finite level. Then, it has been shown that it is possible to construct infinite hierarchies of "increasingly classical" logics—that is, logics that are classical at the level of inferences and of increasingly higher metainferences—all of which admit a transparent truth predicate. In this paper, we extend this line of investigation by taking a somehow (...) different route. We explore logics that are different from classical logic at the level of inferences, but recover some important aspects of classical logic at every metainferential level. We dub such systems meta-classical non-classical logics. We argue that the systems presented deserve to be regarded as logics in their own right and, moreover, are potentially useful for the non-classical logician. (shrink)

The Supreme Court’s decision in the Dobb’s case has given rise to confusion in the medical community, mostly concerning the specific definition of an abortion and what procedures are acceptable. Catholic bioethics has a long history of examining the ethical issues surrounding procedures used in vital conflict situations and other instances where direct or indirect abortion may be the preferred treatment. This article lays out the important points and ethical dimensions surrounding some of the most common pregnancy related interventions and (...) provides guidance to physicians seeking to treat both patients in a manner that acknowledges their value as human beings. (shrink)

En este capítulo ofrecemos una introducción sistemática e histórica a la lógica, disciplina que contribuyó en gran medida a la producción del conocimiento en general y a la formación del pensamiento científico en particular. La primera sección contiene la introducción sistemática: primero, presentamos las distintas disciplinas que forman parte de la lógica en el sentido amplio del término; luego, identificamos a la lógica en sentido canónico o estricto como el estudio la validez; por último, explicamos en qué sentido la validez (...) es una propiedad formal. La segunda sección contiene la introducción histórica; nos detenemos, en particular, a estudiar dos hitos: el nacimiento de la lógica como disciplina con Aristóteles, y la intervención de Gottlob Frege, a quien se debe, en gran parte, el surgimiento de la lógica tal como la conocemos. Finalmente, damos un breve comentario del estado actual de la disciplina. (shrink)