In December 2013, the Nonhuman Rights Project (NhRP) filed a petition for a common law writ of habeas corpus in the New York State Supreme Court on behalf of Tommy, a chimpanzee living alone in a cage in a shed in rural New York (Barlow, 2017). Under animal welfare laws, Tommy’s owners, the Laverys, were doing nothing illegal by keeping him in those conditions. Nonetheless, the NhRP argued that given the cognitive, social, and emotional capacities of chimpanzees, Tommy’s confinement constituted (...) a profound wrong that demanded remedy by the courts. Soon thereafter, the NhRP filed habeas corpus petitions on behalf of Kiko, another chimpanzee housed alone in Niagara Falls, and Hercules and Leo, two chimpanzees held in research facilities at Stony Brook University. Thus began the legal struggle to move these chimpanzees from captivity to a sanctuary, an effort that has led the NhRP to argue in multiple courts before multiple judges. The central point of contention has been whether Tommy, Kiko, Hercules, and Leo have legal rights. To date, no judge has been willing to issue a writ of habeas corpus on their behalf. Such a ruling would mean that these chimpanzees have rights that confinement might violate. Instead, the judges have argued that chimpanzees cannot be bearers of legal rights because they are not, and cannot be persons. In this book we argue that chimpanzees are persons because they are autonomous. (shrink)

This paper proposes a comparison between the myth of Prometheus and Pliny the Elder’s account of the origins of painting to assess the technical characterof images. Such a character is seen as a precondition for understanding their epistemological value, as well as for supporting the need for hermeneutics at any level of artificial intervention. Finally, part of Horst Bredekamp’s work will be presented as an example of a methodology that combines hermeneutics and iconology based on such a technical character.

The paper aims to understand whether morphology can be framed as a language for aesthetics. In particular, whether Olaf Breidbach’s contribution can determine its fundamental terms. These are related to the notion of forms and images. Hence, the paper is structured into three parts: i) framing of research on morphology in Ger-many; ii) analysis of Goethe’s method and vocabulary from an aesthetic standpoint; iii) presentation of Breidbach’s proposal in relation to Goethe.

This chapter examinates the concept of Baroque habits in its various declensions, dwelling in particular on aesthetic habits through the case study of Guarino Guarini’s Chapel of the Holy Shroud in Turin. In the first part three declensions of Baroque habits, linked together by profound implications, are identified: habits of knowledge, referred to the ideal of Baroque encyclopedism; moral habits, framed in the Baroque practices of government of affects; and aesthetic habits, consisting in regimes of or- dering of sensible experience (...) which finds in the Wunderkammer one of its highest manifestations. In the second part of this chapter, these concepts are applied and further elaborated in the light of one of the greatest results of European Baroque, the Guarinian Chapel. Through the example of the Turinese architecture it is demon- strated how Baroque representative practices perform a gesture of immanentization of the transcendent principle by composition of light and application of geometry. Such “sensible metaphysics” is aimed at both the government of affects and at the creation of a habitable space of experience, where the infinite transcendence of Christian divinity becomes source and object of habits. (shrink)

In this brief, we argue that there is a diversity of ways in which humans (Homo sapiens) are ‘persons’ and there are no non-arbitrary conceptions of ‘personhood’ that can include all humans and exclude all nonhuman animals. To do so we describe and assess the four most prominent conceptions of ‘personhood’ that can be found in the rulings concerning Kiko and Tommy, with particular focus on the most recent decision, Nonhuman Rights Project, Inc v Lavery.

Matija Vlačić Ilirik was one of the pillars of Luther’s Reformation. In a special way, he dedicated himself to one of its most important issues – the understanding of the Scriptures, and can, therefore, be considered a significant instigator of the founding of modern hermeneutics. As an excellent connoisseur of classical languages (Hebrew, Greek and Latin) he recognized the importance and dealt with many issues of language, grammar, logic, and dialectic, as essential prerequisites for understanding everything which exists, and hence (...) of the written text also. In this connection, his skepticism towards philosophy is apparent, since the main source of theological cognition, for him, is revelation, and not the human reason, which was principally destroyed by Original Sin. He found the confirmation of his ideas in the current debates with both proponents and opponents of the Reformation, as well as in his research into church history, wherein he incessantly tried to find the witnesses of the truth, as he perceived it. (shrink)

Traditionally, consistency is the only criterion for the quality of a theory in logic-based approaches to reasoning about actions. This work goes beyond that and contributes to the metatheory of actions by investigating what other properties a good domain description should have. We state some metatheoretical postulates concerning this sore spot. When all postulates are satisfied we call the action theory modular. Besides being easier to understand and more elaboration tolerant in McCarthy’s sense, modular theories have interesting properties. We point (...) out the problems that arise when the postulates about modularity are violated, and propose algorithmic checks that can help the designer of an action theory to overcome them. (shrink)

I argue that an analogy between pains and sounds suggests a way to give an objective account of pain which fits well with a naïve perceptualist account of feeling pain. According to the proposed metaphysical account, pains are relational physical events with shared qualitative nature, each of which is constituted by tissue damage and the activation of nociceptors. I proceed to show that the metaphysical proposal is compatible with platitudes about pains being animate, private, and self-intimating states.

In this paper we seek to take notice of the evolution and continuity of Jan Patočka’s phenomenology on the topic of the world and human existence’s relationship with it. We believe that this problem underlies and stimulates Patočka’s whole phenomenological research and we think that it is a key element to understand the ensemble of his thought.

The phenomenon of self-love elicits conflicting reactions. Some believe it is the key to happiness, while others are skeptical. This essay defines self-love as wholehearted concern for one's well-being, argues that it does not imply selfishness, arrogance, or vanity, discusses reasons to value self-love, and describes ways Logic-Based Therapy can be used to help people love themselves.

Contemporary research offers a more compelling account on the complex emotion of envy than the traditional view of envy as simply something bad. This essay explains how Logic-Based Therapy can use this account to coach individuals struggling with negative species of envy. Given that jealousy and envy are often equated, the essay differentiates the two; explains the conditions that make the four species of envy possible; identifies cardinal fallacies associated with negative species of envy; proposes counteractive virtues, and describes ways (...) to help people struggling with negative species of envy acquire these virtues. (shrink)

In this paper I will discuss a recent attempt of justifying democracy and its authority. It pertains to recently published papers by Niko Kolodny, which complement each other and taken together practically assume a form of a monograph. It could be said that Kolodny's approach is a non-standard one given that he avoids typical ways of justifying democracy. Namely, when a justification of democracy is concerned, Kolodny maintains that it is necessary to offer a kind of an independent justification. It (...) is not so much that he insists that the usual approaches are wrong as much as that an independent justification is necessary in order to discern what it is that gives them their significance. Kolodny's independent justification of democracy is based on the idea of social equality. In this paper I will try to reconstruct and critically assess Kolodny's approach by paying special attention to the question of democratic authority. (shrink)

To explain the evolutionary emergence of uniquely human skills and motivations for cooperation, Tomasello et al. (2012, in Current Anthropology 53(6):673–92) proposed the interdependence hypothesis. The key adaptive context in this account was the obligate collaborative foraging of early human adults. Hawkes (2014, in Human Nature 25(1):28–48), following Hrdy (Mothers and Others, Harvard University Press, 2009), provided an alternative account for the emergence of uniquely human cooperative skills in which the key was early human infants’ attempts to solicit care and (...) attention from adults in a cooperative breeding context. Here we attempt to reconcile these two accounts. Our composite account accepts Hrdy’s and Hawkes’s contention that the extremely early emergence of human infants’ cooperative skills suggests an important role for cooperative breeding as adaptive context, perhaps in early Homo. But our account also insists that human cooperation goes well beyond these nascent skills to include such things as the communicative and cultural conventions, norms, and institutions created by later Homo and early modern humans to deal with adult problems of social coordination. As part of this account we hypothesize how each of the main stages of human ontogeny (infancy, childhood, adolescence) was transformed during evolution both by infants’ cooperative skills “migrating up” in age and by adults’ cooperative skills “migrating down” in age. (shrink)

In this thesis, I propose and defend a theory according to which committing oneself to knowing the proposition expressed counts as an assertion of that proposition. A consequence of this view is the knowledge account of assertion, according to which one asserts that p correctly only if one knows that p. In support of this approach, I offer a strategy of identifying an assertion’s “normative consequences”, types of act that normally take place as a result of one’s making an assertion (...) incorrectly. I outline two such phenomena: retraction and disavowal of knowledge. In continuation, I put the theory to test and critically examine four sets of objections against it, arguing that it can convincingly defuse them. Finally, I discuss two related issues: I maintain that by performing “aesthetic assertions” one also normally performs a non-assertoric speech act of recommendation, and argue for the possibility of “non-linguistic assertions”, whose content is expressed by gestures in appropriate contexts. (shrink)

Philosophers often focus on topics such as death and old age, and much less on other stages of life. The British-American philosopher Kienan Setiya (2017) has recently taken on the topic of middle age from a philosophical perspective and offered suggestions for dealing with the angst often associated with mid-age. His suggestions are based on both his own experiences and practical thoughts based on his readings of other philosophers during their mid-life periods. My own contribution is to describe his thoughts (...) and add a few observations of my own. (shrink)

La description en langue naturelle est l’artefact permettant de débuter un processus d’automatisation. La tâche principale de l’ingénieur du logiciel, c’est de combler le clivage entre langue naturelle et langue de la machine. Après avoir présenté quelques ontologies définies pour les processus d’automatisation, quelques pour et quelques contre l’emploi d’ontologies dans le génie logiciel sont présentées. Des indications pour dépasser cette simple opposition sont ensuite décrites. Des évaluations sur le réductionnisme dans les ontologies en ce qui concerne les possibles interactions (...) entre humains, machines et réalité muette terminent la présentation. (shrink)

Otto Neurath’s empiricist methodology of economics and his contributions to politi- cal economy have gained increasing attention in recent years. We connect this research with contemporary debates regarding the epistemological status of thought experiments by reconstructing Neurath’s utopias as linchpins of thought experiments. In our three reconstructed examples of different uses of utopias/dystopias in thought experiments we employ a reformulation of Häggqvist’s model for thought experiments and we argue that: (1) Our reformulation of Häggqvist’s model more adequately complies with many (...) uses of thought experiments, especially with the open-ended discussions of utopias and dys- topias in thought experiments. (2) As a strict logical empiricist, Neurath is committed to a strictly empiricist account of thought experiments. John Norton’s empiricist argument view can indeed account for the justifications of empirical beliefs and genuine discoveries targeted by scientific utopianism in three distinct (yet connected) ways, all of which Neur- ath already contemplated: (2.I) Dealing with utopias and thought experiments on a regular basis increases creativity and inventiveness. (2.II) Particular ways of presenting knowl- edge facilitate scientific discovery and social progress. (2.III) The use of utopias in thought experiments can prompt conceptual change and allow access to new phenomena. We con- clude by highlighting that, even though thought experiments support a positive attitude for exploring new social possibilities, Neurath points out that active decisions are unavoidable. The exploration of alternatives and the awareness of a need for decisions in policy discus- sion avert a technocratic outlook in social science. (shrink)

A critique of popular astrology. The critical examination outlines a number of serious concerns with the theory underlying astrology.

This paper aims to answer a basic question: is it possible to forge democratic citizenship through various online tools that are already available? To answer this question, I introduce the conception of digital political identities, i.e., the ways in which online environments contribute to creating, maintaining, and changing political identities. Because the well-functioning of democracy rests on citizens with the ability to make informed decisions, vote, and engage in public deliberation, this paper is looking for new and innovative online tools (...) for participating in meaningful online deliberation, acquiring accurate information in the digital space, and making informed voting decisions. By introducing the conception of digital political identities and linking it to online tools that can improve democracy and citizen engagement, I aim to make further progress in cutting edge research on the relationship between digital technologies and democracy. In a nutshell, I am mainly concerned with proposing and defending a normative framework for the use of various online tools that could foster digital democracy. (shrink)

This study explores the relationship between perceptions of catastrophic events and beliefs about climate change. Using data from the 2023 Life in Transition Survey, the study finds that contrary to conventional wisdom, more accurate knowledge about past catastrophes is associated with lower concern about climate change. The paper proposes that heightened threat sensitivity may underlie both the tendency to overestimate disaster impacts and increased concern about climate change. The findings challenge the assumption that a more informed citizenry necessarily leads to (...) better climate policy decisions. Instead, they suggest that psychological factors, like anxiety and risk perception, play crucial roles in shaping climate attitudes. Illuminating these dynamics can help societies to foster a more nuanced and constructive public dialogue about the urgent challenges facing our planet and our species. (shrink)

Спів постійно супроводжував студентів Києво-Могилянської академії у їхньому житті, що підтверджують академічні інструкції, різномантні документи, іконографія, свідчення очевидців тощо. Усі вихованці були зобов’язані відвідувати храми на території Братського монастиря, а найздібніші ставали тут співаками. Вони співали у головних «братських» храмах — Богоявленському соборі та Благовіщенській (Конґреґаційній) церкві, а також у різних церквах Подолу, у київській митрополичій капелі, у Придворній співочій капелі Санкт-Петербурґа тощо. Академічні співаки брали участь у богослужіннях, на похоронах, під час церковних та світських урочистостей, під час випрошування милостині (...) (саме тому бурсу деякий час називали «співочою»). Окрім цього, спів та гра на музичних інструментах були частиною навчання, зокрема є припущення, що вірші на уроках поетики виконували за допомоги співу та гри на музичних інструментах. Музичні номери були частиною шкільних вистав, а хор та оркестр обов’язково супроводжували урочисті богословські та філософські диспути. Поза тим, гра на музичних інструментах належала до рекомендованих розваг і її всіляко вітали поза навчанням, хоч спеціальні музичні дисципліни почали викладати в Академії лише на початку XIX ст. До наших днів збереглася тільки частина нотної спадщини, пов’язаної з Академією та Братським монастирем, — паралітургійні та учнівські пісні, партесні концерти, Ірмологіони. Безумовно, найбільшим серед тих композиторів, хто представляє Академію, слід вважати Артемія Веделя. На відміну від решти видатних композиторів українського походження XVIII ст. — Дмитра Бортнянського та Максима Березовського, Ведель не лише навчався тут, а й писав твори для студентського хору. (shrink)

Government spending or expenditure includes all government consumption, investment, and transfer payments.

Philosophers of science often suggest that the key feature of scientific research is striving for objectivity and that we should evaluate scientific practice by whether it is objective or not. In this paper, we will analyze several definitions of scientific objectivity to illustrate the complex meaning of this term and examine its role in evaluating scientific practice. First, we will introduce Lorraine Daston and Peter Galison's standpoint concerning the historical connection between the genesis and development of scientific objectivity and the (...) practices of visual representation in the research practice of the 19th and 20th centuries. We will accomplish that by outlining the process of establishing scientific objectivity as an epistemic virtue and a vital feature of the "scientific self ". Subsequently, using Heather Douglas and Mar-ianne Janack's conceptual analysis of scientific objectivity, we will show that scientific objectivity is characterized by an "irreducibility of meaning" and an "endemic instability" caused by the overuse of metaphors in defining this concept. In the final section, in light of contemporary problems such as the crisis of reproducibility, we examine to what extent philosophical definitions help test the objectivity of scientific practice and point to an intriguing attempt to define "objectivity for the research worker" using the model proposed by Noah van Dongen and Michał Sikorski. (shrink)

Since political polarization significantly impacts contemporary politics and democracy, much of the research in the social sciences is dedicated to this topic. In recent times, philosophers joined the discussion related to the research on political polarization, primarily in the fields of political philosophy and political epistemology. The main aim of this paper is philosophical analysis of some dominant explanations of political polarization, but also to propose solutions for a way out of political polarization from the perspective of political philosophy. In (...) a nutshell, to find solutions for a way out of political polarization, I will be looking in the direction of boosting epistemic rationality and fostering communication in conditions of tolerance and equality. (shrink)

The aim of this work is to understand the retraction phenomenon in the arts and humanities domain through an analysis of the retraction notices – formal documents stating and describing the retraction of a particular publication. The retractions and the corresponding notices are identified using the data provided by Retraction Watch. Our methodology for the analysis combines a metadata analysis and a content analysis (mainly performed using a topic modeling process) of the retraction notices. Considering 343 cases of retraction, we (...) found that many retraction notices are neither identifiable nor findable. In addition, these were not always separated from the original papers, introducing ambiguity in understanding how these notices were perceived by the community (i.e., cited). Also, we noticed that there is no systematic way to write a retraction notice. Indeed, some retraction notices presented a complete discussion of the reasons for retraction, while others tended to be more direct and succinct. We have also reported many notices having similar text while addressing different retractions. We think a further study with a larger collection should be done using the same methodology to confirm and investigate our findings further. (shrink)

The 1917 February Revolution led to the reshaping of the war-era image of the German enemy. Focusing on the former imperial borderland province of the Southwestern Krai, this article unveils the national, political, and cultural considerations of the local Ukrainian and Russian-language media that affected their attitude towards the Germans. It argues that the developments of the 1917–1918 Ukrainian Revolution presented a unique case of constructing the image of the Germans due to the ongoing rivalry between the respective Ukrainian and (...) Russian national projects. The study is based on the materials of prominent Kyivan daily newspapers, thus rendering the spectrum of the region’s political thought. Built upon the concept of imagology, the article apprehends the images of “otherness” in conjunction with the actor’s own identity. (shrink)

Підставою для написання статті стало віднайдення Людмилою Посоховою нотного канта з рукопису, який тривалий час вважали втраченим. Унікальність цієї пам’ятки, датованої 1706 роком, полягає у тому, що це єдиний збережений нотний зразок зі шкільних вистав ранньомодерної доби в українських православних навчальних закладах. Решта музичних творів такого типу дійшли до нас без нот, лише з вербальним текстом. Найвірогіднішим автором (авторами) канту був хтось із викладачів або студентів класу риторики. Дослідження нотного рукопису в контексті історії музичної культури Чернігівського колеґіуму дозволяє припустити, що (...) кант виконували у супроводі або одного музичного інструменту (лютні), або цілого інструментального ансамблю. Крім аналізу музично-теоретичних та структурних особливостей твору, у статті наведено відомості про співаків чернігівських архиєпископів, студентів-співаків, про гру студентів на різних музичних інструментах, а також про музичну практику мандрівних гуртів. (shrink)

Здійснено спробу з’ясувати «читацький канон» та охарактеризувати книжкову культуру православних монастирів ранньомодерного часу київської традиції на прикладі чотирьох обителей Львівської єпархії — Крехівської, Львівської Святоонуфріївської, Підгорецької та Теребовельської. Вибір цих монастирів зумовлено станом джерельної бази, а основними джерелами слугували «списки книг», що їх зазвичай подавали в інвентарних описах. Усі досліджені книжкові зібрання були невеликими за обсягом порівняно з тогочасними католицькими кляшторами, зокрема, найбільше з-поміж відомих, крехівське, налічувало лише бл. 100 томів. Lectio Orthodoxorum монахів Львівської єпархії XVII ст. — це, окрім (...) богослужбових книг, своєрідна «тріада»: святоотцівська духовно-аскетична спадщина, житійна (агіографічна) та проповідницька література. Практично немає античної спадщини — творів давньогрецьких та давньоримських авторів, на вивченні яких базувалась гуманістична система освіти, у тому числі в церковних релігійних закладах. Це опосередковано говорить або про освітній рівень ченців, або, можливо, про відсутність «практичної» потреби у такій лектурі — на відміну від обителей, при яких діяли навчальні осередки. Чи це може бути одним зі свідчень того, що для насельників досліджуваних монастирів основним залишалось молитовне життя, а не «інтелектуальна» праця? Чи такий склад і невеликі обсяги книжкових зібрань можуть виступати одним із арґументів для розгляду цих монастирів як місць, де панував lex orandi, натомість інтелектуальна діяльність, зокрема анґажованість у читання, не видавалася необхідною? Відповідь на ці питання вимагає подальших досліджень. (shrink)

Neurath’s scientific utopianism is the proposal that the social sciences should engage in the elaboration, development, and comparison of counterfactual scenarios, the ‘utopias’. Such scenarios can be understood as centerpieces of scientific thought experiments, that is, in exercises of imagination that not only promote conceptual revision, but also stimulate creativity to deal with experienced problems, as utopias are efforts to imagine what the future could look like. Moreover, utopian thought experiments can offer scientific knowledge to inform political debates and decisions, (...) contributing to the shaping of society. This essay reconstructs a historical event as an example of Neurath’s utopianist methodology. In the late 1970s and early 1980s, a scientific and political commission appointed by the Western German Parliament devised and compared four scenarios for future energetic-economic policies. Conclusions of the commission informed political decisions that put Western (later reunified) Germany in a route towards becoming a green industrial power. A fundamental part of the commission’s work involved an appeal to imagination, allowing for the characterization under Neurath’s methodology. (shrink)

The popular belief that our mind either depends on or (in stronger terms) is identical with brain functions and processes, along with the belief that advances in technology in virtual reality and computability will continue, has contributed to the contention that one-day (perhaps this century) it may be possible to transfer one’s mind (or a simulated copy) into another body (physical or virtual). This is called mind-uploading or whole brain emulation. This paper serves as an introduction to the area and (...) some of the major issues that arise from the notion of mind-uploading. The topic of mind/brain uploading is, at present, both a philosophical and scientific minefield. This paper ties together several thoughts on the topic in the popular, philosophical, and scientific literature, and brings up some related issues that might be worth exploring. A challenge is made that uploading a mind from a brain may have intrinsic limitations on what can be uploaded: whatever is uploaded may not be recognizably human, or will be a very limited version. (shrink)

In this talk, I’d like to focus not on external technologies like computers, smart boards, virtual experience, nor the Orgasmatron in Woody Allen’s movie Sleeper (1973), but rather on some of the possible social implications of bodily implanted devices on the future of human nature and society. In other words, I’ll leave the science underlying cyborgs to the boffins in engineering, computer science and artificial intelligence, and just focus on some conceptualizations of the word ‘cyborg’, along with possible social implications (...) and concerns surrounding cyborgization. (shrink)

Recenze: Marek PICHA, Kdyby chyby. Epistemologie myšlenkových experimentů. Olomouc: Nakladatelství Olomouc 2011. 195 s.

In this paper I offer a conceptually tighter, quasi-Fregean solution to the concept horse paradox based on the idea that the unterfallen relation is asymmetrical. The solution is conceptually tighter in the sense that it retains the Fregean principle of separating sharply between concepts and objects, it retains Frege’s conclusion that the sentence ‘the concept horse is not a concept’ is true, but does not violate our intuitions on the matter. The solution is only ‘quasi’- Fregean in the sense that (...) it rejects Frege’s claims about the ontological import of natural language and his analysis thereof. (shrink)

We consider Baars’ "Global Workspace" theory of consciousness and discuss its possible representation within a model of intelligent agents. We first review a particular agent implementation that is given by an abstract machine, and then identify the extensions that are required in order to accommodate the main aspects of consciousness. According to Baars’ theory, this amounts to unconscious process coalitions that result in the creation of contexts. These extensions can be formulated within a reified virtual machine encompassing a representation of (...) the original machine as well as an additional introspective component. This computational framework is illustrating throughout using a simple working example. (shrink)

As historically acknowledged in the Reasoning about Actions and Change community, intuitiveness of a logical domain description cannot be fully automated. Moreover, like any other logical theory, action theories may also evolve, and thus knowledge engineers need revision methods to help in accommodating new incoming information about the behavior of actions in an adequate manner. The present work is about changing action domain descriptions in multimodal logic. Its contribution is threefold: first we revisit the semantics of action theory contraction proposed (...) in previous work, giving more robust operators that express minimal change based on a notion of distance between Kripke-models. Second we give algorithms for syntactical action theory contraction and establish their correctness with respect to our semantics for those action theories that satisfy a principle of modularity investigated in previous work. Since modularity can be ensured for every action theory and, as we show here, needs to be computed at most once during the evolution of a domain description, it does not represent a limitation at all to the method here studied. Finally we state AGM-like postulates for action theory contraction and assess the behavior of our operators with respect to them. Moreover, we also address the revision counterpart of action theory change, showing that it benefits from our semantics for contraction. (shrink)

This paper aims to contribute to the existing literature on normative cognition by providing a lineage explanation of human social norm psychology. This approach builds upon theories of goal-directed behavioral control in the reinforcement learning and control literature, arguing that this form of control defines an important class of intentional normative mental states that are instrumental in nature. I defend the view that great ape capacities for instrumental reasoning and our capacity (or family of capacities) for shared intentionality coadapted to (...) each other and argue that the evolution of this capacity has allowed the representation of social norms and the emergence of our capacity for normative guidance. (shrink)

Traditionally, consistency is the only criterion for the quality of a theory in logic-based approaches to reasoning about actions. This work goes beyond that and contributes to the meta-theory of actions by investigating what other properties a good domain de- scription should satisfy. Having Propositional Dynamic Logic (PDL) as background, we state some meta-theoretical postulates concerning this sore spot. When all pos- tulates are satisfied, we call the action theory modular. We point out the problems that arise when the postulates (...) about modularity are violated, and propose algorith- mic checks that can help the designer of an action theory to overcome them. Besides being easier to understand and more elaboration tolerant in McCarthy’s sense, mod- ular theories have interesting computational properties. Moreover, we also propose a framework for updating domain descriptions and show the importance modularity has in action theory change. (shrink)