The cognitive foundations of geometry have puzzled academics for a long time, and even today are mostly unknown to many scholars, including mathematical cognition researchers. -/- Foundations of Geometric Cognition shows that basic geometric skills are deeply hardwired in the visuospatial cognitive capacities of our brains, namely spatial navigation and object recognition. These capacities, shared with non-human animals and appearing in early stages of the human ontogeny, cannot, however, fully explain a uniquely human form of geometric cognition. In the book, (...) Hohol argues that Euclidean geometry would not be possible without the human capacity to create and use abstract concepts, demonstrating how language and diagrams provide cognitive scaffolding for abstract geometric thinking, within a context of a Euclidean system of thought. -/- Taking an interdisciplinary approach and drawing on research from diverse fields including psychology, cognitive science, and mathematics, this book is a must-read for cognitive psychologists and cognitive scientists of mathematics, alongside anyone interested in mathematical education or the philosophical and historical aspects of geometry. (shrink)

James (1890) distinguished two understandings of the self, the self as “Me” and the self as “I”. This distinction has recently regained popularity in cognitive science, especially in the context of experimental studies on the underpinnings of the phenomenal self. The goal of this paper is to take a step back from cognitive science and attempt to precisely distinguish between “Me” and “I” in the context of consciousness. This distinction was originally based on the idea that the former (“Me”) corresponds (...) to the self as an object of experience (self as object), while the latter (“I”) reflects the self as a subject of experience (self as subject). I will argue that in most of the cases (arguably all) this distinction maps onto the distinction between the phenomenal self (reflecting self-related content of consciousness) and the metaphysical self (representing the problem of subjectivity of all conscious experience), and as such these two issues should be investigated separately using fundamentally different methodologies. Moreover, by referring to Metzinger’s (2018) theory of phenomenal self-models, I will argue that what is usually investigated as the phenomenal-“I” [following understanding of self-as-subject introduced by Wittgenstein (1958) ] can be interpreted as object, rather than subject of experience, and as such can be understood as an element of the hierarchical structure of the phenomenal self-model. This understanding relates to recent predictive coding and free energy theories of the self and bodily self discussed in cognitive neuroscience and philosophy. (shrink)

The aim of the paper is to discuss the idea of dialogue with nature. Even though the idea of dialogue with animals, plants – even objects of inanimate nature – is well known, it has usually been treated as an expression of a naive or folk view. Yet, it has recently gained in importance as an idea that is used to describe an ecological approach to natural environment and tends to be treated as a foundation for an ecological culture. A (...) noteworthy contribution to the reconsideration of the concept of human-nature dialogue has also been given by a number of contemporary philosophers who have offered an environmental reinterpretation of phenomenology and hermeneutics based on, among other things, Martin Buber’s concept of the I-You relationship. The paper will focus on two aspects of the concept of dialogue, namely on its epistemological and ethical implications. Following Erazim Kohák’s theory, which will be presented as a key figure of a particular manner of speaking about nature, one that leads to ecological personalism. (shrink)

The notion of implicit commitment has played a prominent role in recent works in logic and philosophy of mathematics. Although implicit commitment is often associated with highly technical studies, it remains an elusive notion. In particular, it is often claimed that the acceptance of a mathematical theory implicitly commits one to the acceptance of a Uniform Reflection Principle for it. However, philosophers agree that a satisfactory analysis of the transition from a theory to its reflection principle is still lacking. We (...) provide an axiomatization of the minimal commitments implicit in the acceptance of a mathematical theory. The theory entails that the Uniform Reflection Principle is part of one’s implicit commitments, and sheds light on why this is so. We argue that the theory has significant epistemological consequences in that it explains how justified belief in the axioms of a theory can be preserved to the corresponding reflection principle. The theory also improves on recent analyses of implicit commitment based on truth or epistemic notions. (shrink)

Boolean connexive logic is an extension of Boolean logic that is closed under Modus Ponens and contains Aristotle’s and Boethius’ theses. According to these theses a sentence cannot imply its negation and the negation of a sentence cannot imply the sentence; and if the antecedent implies the consequent, then the antecedent cannot imply the negation of the consequent and if the antecedent implies the negation of the consequent, then the antecedent cannot imply the consequent. Such a logic was first introduced (...) by Jarmużek and Malinowski, by means of so-called relating semantics and tableau systems. Subsequently its modal extension was determined by means of the combination of possible-worlds semantics and relating semantics. In the following article we present axiomatic systems of some basic and modal Boolean connexive logics. Proofs of completeness will be carried out using canonical models defined with respect to maximal consistent sets. (shrink)

Author: Bonecki Mateusz Title: HUMANISTIC INTERPRETATION AND THEORETICAL RECONSTRUCTION OF CULTURE (Interpretacja humanistyczna a teoretyczna rekonstrukcja kultury) Source: Filo-Sofija year: 2011, vol:.12, number: 2011/1, pages: 189-211 Keywords: CULTURE, SOCIO-REGULATORY THEORY OF CULTURE, KMITA, INTERPRETATION, HUMANITIES, FUNCTIONALISM, CULTURAL STUDIES, KULTURWISSENSCHAFTEN Discipline: PHILOSOPHY Language: POLISH Document type: ARTICLE Publication order reference (Primary author’s office address): E-mail: www:In this paper the author presents crucial aspects of Jerzy Kmita’s socio-regulatory conception of culture in order to define it as a theoretical background of “humanistic (...) interpretation”. When the latter is to be understood as a method of explanation of human behavior with regard to its cultural meaning, the theoretical background is provided by variety of research activities which the author defines as “theoretical reconstruction of culture”. They consist in e.g. socio-functional explanation, linguistic and semantic analysis, or even in epistemological considerations, and guarantee theoretically independent justification of the interpretive hypotheses applied in the course of “humanistic interpretation”. Such “reconstruction” specifies further conditions of intersubjective acceptability of the statements within the discourse of humanities and therefore it also limits the subjective and individual character of the attribution of cultural beliefs to the members of a certain cultural community. (shrink)

Idea słowiańska” jest terminem ogólnym, odnoszącym się do wielu politycznych, historiozoficznych i kulturowych wątków, dla których inspiracją było językowe i kulturowe pokrewieństwo między narodami słowiańskimi. Takie ruchy jak słowianofilstwo i panslawizm miały na celu kulturalne i polityczne zjednoczenie Słowian. Idea ta wywarła silny wpływ na muzykę krajów środkowej i wschodniej Europy w XIX i XX wieku. Pod jej wpływem powstała znaczna liczba utworów muzycznych. Można utwory te podzielić na kilka grup. W jednych „słowiańskość” podkreślana była poprzez tytuł. Kompozytorzy używali również (...) typowo słowiańskich gatunków tanecznych i pieśniowych, jak polski mazurek i ukraińska dumka. Innym sposobem realizacji idei słowiańskiej były muzyczne kontakty między twórcami. Idea muzyki słowiańskiej pojawia się również w komentarzach muzykologicznych: słowiański „charakter” muzyczny bywał najczęściej łączony ze specyficznymi kategoriami emocjonalnymi, takimi jak smutek, tęsknota, szczególnie zaś żal, które to określenie stosowano do opisu przemożnego nastroju panującego w dziełach Chopina. (shrink)

The aim of the article is to analyze the relationship between Singapore and the People’s Republic of China in the light of the current policy of the President of the United States Donald Trump. The point of reference for the presented analysis is the foreign policy of the former President Barack Obama, based on the strategy known as “pivot to Asia” – the strategic turnabout of the United States to the Asia-Pacific region. One of its main objectives was the signing (...) of a multilateral agreement on the establishment of a free trade zone, the Trans-Pacific Partnership (TPP), bringing together 12 countries. The main subject of the present analysis is to examine the impact of Donald Trump’s decision of January 2017 to withdraw from the TPP trade agreement on the relations between the remaining signatories of the agreement, as well as to examine Beijing’s actions, which may seek to increase its sphere of influence in Asia through the breakdown of TPP. The main part of the research is focused on the triangle politics concept in international politics, which will include China, Singapore and the United States. Besides the two largest economic powers, Singapore is included because of its membership in the TPP and ASEAN, and due to its strong economy and its population (predominantly) of Chinese origin it can be viewed as the “fifth column” or may otherwise play a role in the Greater China concept. (shrink)

The article is devoted to the famous The Discourse of Voluntary Servitude by Étienne de La Boétie. The author considers the theoretical premises underlying the concept of “voluntary servitude”, juxtaposing them with two modern concepts of will developed by Descartes and Pascal. An important feature of La Boétie’s project is the political and therefore intersubjective – as opposed to the individualistic perspective of Descartes and Pascal – starting point. It is therefore situated against the background of, on the one hand, (...) the historical evolution of early modern states and, on the other hand – of the political philosophy of Machiavelli and Hobbes. (shrink)

In this review-paper, I focus on biopsychological foundations of geometric cognition. Starting from the Kant’s views on mathematics, I attempt to show that contemporary cognitive scientists, alike the famous philosopher, recognize mutual relationships of visuospatial processing and geometric cognition. What I defend is a claim that Tinbergen’s explanatory questions are the most fruitful tool for explaining our “hardwired,” and thus shared with other animals, Euclidean intuitions, which manifest themselves in spatial navigation and shape recognition. I claim, however, that these “hardwired (...) intuitions” cannot capture full-blooded Euclidean geometry, which demands practice with cultural artifacts in various time-scales. (shrink)

The main purpose of the paper is to develop a concept of _model uncertainty_ as opposed to the existing and well-established concept of model risk. Up to date the broad literature on probability not only developed complete probability systems, but also correctly noticed limitations of probability calculus. Despite the acknowledgement of such probability restrictions, drawbacks of modeling are often related to model risk. We present an argument here to distinguish a feature limiting models even further: model uncertainty. The tenets of (...) it already exist in the literature on probability, but were not properly emphasized while the idea of model risk was developed. Our plan it to start with a broad overview of the existing knowledge about probability in order to start with fundamental principles. From them we are deriving a new concept of model uncertainty. (shrink)

The article describes areas of interpersonal communication in which the Virtual Reality technology plays an increasingly bigger role. The analysis of data shows that the VR system has proved successful in entertainment brand and is widely used for educational purposes. What is more brand advertising strategy can also rely on it. Access to virtual reality is still exclusive due to high price of the VR googles. However, more and more companies see a great potential of VR systems and increase funding (...) in order to develop this sector of technology. Interpersonal communication methodologies are always generation-based and thus one can suspect that the VR will became the main facility that connects people in the future. (shrink)

The paper presents a partial evaluation of employment and factors related to the labour markets in European countries in 2007-2016. The interconnectedness of these determinants in the context of GDP dynamics per capita for each country was examined. The quoted partial subject literature and empirical research allowed to formulate the most important conclusions, among others: in the context of GDP dynamics per capita, at least four groups of countries can be distinguished in Europe, each of them has completely different characteristics (...) having an influence (in the Granger causality sense) on change in GDP per capita of these countries for various time steps. (shrink)

The article takes up the difficult problem of the so-called disobedience of judges against the background of the experiences of the Polish departure from constitutional democracy in 2015–2020. The special role and responsibility of a judge in the state imposes restrictions on her freedom of opinion in the public sphere. Openly manifesting opposition to government policy, which in the case of an ordinary citizen is only the implementation of human rights and freedoms, may be described as controversial and contrary to (...) applicable ethical regulations. The main thesis of this paper is the assertion that although judges who act as impartial arbitrators in disputes should generally refrain from ostentatiously opposing the actions of political authorities, they are not deprived of the possibility of protest. Also in the exercise of office, and not outside the sphere of their duties, judges should take into account overriding moral values that should be implemented by the legal order, and not the values or declarations guiding the government policies. The integrity of the judge, which prescribes restraint in statements and actions in the public sphere, as well as the care for the dignity of the office held, should not be confused with absolute subordination to the legislature or the executive, even if the judge is obliged to apply the law. The traditional attitude of the members of the judiciary, consisting in focusing only on the application of the law in individual cases and the lack of any political involvement, is being reviewed in the face of the spread of majoritarianism and the law abuse as normal techniques of exercising public authority. The disobedience of judges—although difficult to defend at first sight—may seem to be the only possible way to draw public attention to the corruption of the state system. The ‘disobediant’ judges can even be assigned the role of ‘whistleblowers’, which should help to ease their legal liability or their future rehabilitation. (shrink)

Tomasz z Akwinu nie kojarzy się w pierwszym odruchu z kimś, kto kładłby mocny akcent na teologię Boga uniżonego we wcieleniu i na krzyżu. Tak przynajmniej wydaje się wielu współczesnym teologom, zwłaszcza tym, którzy są przedstawicielami szeroko rozumianego nurtu kenotycznego. Według nich Akwinata jest przykładem myśliciela, w którego teologii absolutność Boga, Jego transcendencja, niezmienność, suwerenność i potęga zostały tak mocno podkreślone, że ma to wręcz uniemożliwiać adekwatne uchwycenie zdumiewającej prawdy objawionej w Chrystusie: Bóg jest Bogiem uniżającym siebie samego. Zatem, zdaniem (...) wielu współczesnych teologów, proponowana przez Tomasza wizja Boga ma więcej wspólnego ze skonstruowaną za pomocą metafizyki filozoficzną doktryną Absolutu niż z Bogiem, który stał się człowiekiem i umarł na krzyżu dla naszego zbawienia. Czy jednak zarzut ten jest słuszny? Czy Akwinata rzeczywiście nie dostrzega uniżenia Boga? Właśnie z próby odpowiedzenia na te pytania zrodziła się niniejsza książka. Ze Wstępu. (shrink)

The current paper studies the formal properties of the Global Reflection Principle, to wit the assertion “All theorems of$\mathrm {Th}$are true,” where$\mathrm {Th}$is a theory in the language of arithmetic and the truth predicate satisfies the usual Tarskian inductive conditions for formulae in the language of arithmetic. We fix the gap in Kotlarski’s proof from [15], showing that the Global Reflection Principle for Peano Arithmetic is provable in the theory of compositional truth with bounded induction only ($\mathrm {CT}_0$). Furthermore, we (...) extend the above result showing that$\Sigma _1$-uniform reflection over a theory of uniform Tarski biconditionals ($\mathrm {UTB}^-$) is provable in$\mathrm {CT}_0$, thus answering the question of Beklemishev and Pakhomov [2]. Finally, we introduce the notion of a prolongable satisfaction class and use it to study the structure of models of$\mathrm {CT}_0$. In particular, we provide a new model-theoretical characterization of theories of finite iterations of uniform reflection and present a new proof characterizing the arithmetical consequences of$\mathrm {CT}_0$. (shrink)

The book presents a critical overview of Peirce's views on modern nominalism and offers a novel approach to the social-anthropological underpinnings of his realism, especially Pragmatic Realism vis à vis the individualist tendencies in modern thought.

One of the logic defined by Richard Epstein in a context of an analysis of subject matter relationship is Symmetric Relatedness Logic S. In the monograph [2] we can find some open problems concerning relatedness logic, a Post-style completeness theorem for logic S is one of them. Our paper introduces a solution of this metalogical issue.

The main aim of our paper was to present three formal tools for comparing various axiomatic theories of truth. In Section 2 we aimed at showing that there are indeed many different approaches to defining a set of axioms for the notion of truth. In Section 3 we introduced three different \measures of strength" of axiomatic theories of truth, i.e. three reflexive and transitive relations on the set of axiomatic theories of truth. We have explained the intuition behind each of (...) them. The three relations were called : Fujimoto definability, model-theoretical strength, proof-theoretical strength. Then in the last section we described how they order the truth theories introduced in Section 2. We observed that theories made equivalent by the coarser relation can be strictly ordered by the next one. (shrink)

The paper addresses the question how descriptive language is used to express legal norms. Sentences we find in legislative acts, i.e. statutes, constitutions and regulations, express legal norms. Linguistically speaking, there are various grammatical and lexical ways of expressing norms, such as imperative mood, modal verbs, deontic verbs, etc. However, norms may also be expressed by descriptive sentences, namely sentences in present or future tense and indicative (declarative) mood (i.e. _The minister determines the tax rate_). In many civil law countries (...) (including Poland), this is a very common, if not the default, form of expressing norms in legislative texts. Often presented as a legal peculiarity, this phenomenon has yet to draw much academic attention. The normative meaning of descriptive sentences is usually attributed to purely pragmatic factors stemming from our shared assumptions about the legal system. However, a closer look reveals that similar grammatical constructions are ubiquitous in everyday communication and in different languages. We tend to utter various sorts of directives using descriptive sentences (_Now we add a spoon of salt to the sauce_; _credit cards are not accepted_). This suggests the possibility for a linguistic (as opposed to exclusively legal) explanation. This paper aims to offer such an explanation. Rather than resorting to formal semantics, so prevalent in legal theory, it borrows from Cognitive Linguistics to reveal the cognitive underpinnings of our surprising tendency to express normativity in descriptive terms. This involves four different, yet complementary, theories. Firstly, the theory of conceptual metaphor by George Lakoff and Mark Johnson which explains the phenomenon in question in terms of the metaphor “ ought is is ”; with “ ought ” as the more abstract target domain and “ is ” as the more concrete, cognitively simpler source domain. Secondly, the theory of speech act metonymy by Panther and Thornburg which presents descriptive legal sentences as referring to various components of the underlying cognitive scenario of obligation. Thirdly, Ronald Langacker’s notion of the virtuality of language as the explanation for non-present, including future, perpetual and directive, uses of the present tense. Fourtly, the notion of normative generics which points to the nominal, as opposed to verbal, structure of descriptive legal sentences as the source of their normativity. (shrink)

The aim of this article is to suggest that one should think of gardens in terms of performances and not necessarily in terms of architecture, painting, or poetry, for it is possible to show that, strangely enough, gardens seem to share certain features with performance arts. Such an approach seems fruitful since it allows one both to grasp the fact that gardens combine culture and nature and to underline the role of the latter, which cannot be reduced to a sheer (...) medium as is traditionally done. The contention is that gardens should be treated more like a continuous, dynamic, partly planned process in which people can participate in different ways on a par with other non-human ‘actors’. Moreover, the category of performance seems to offer a useful framework helping to solve certain problems inherent in traditional ways of thinking about gardens. (shrink)

The article concerns two axiom systems of Słupecki for the functionally complete three-valued propositional logic: W1–W6 and A1–A9. The article proves that both of them are inadequate—W1–W6 is semantically incomplete, on the other hand, A1–A9 governs a functionally incomplete calculus, and thus, it cannot be a semantically complete axiom system for the functionally complete three-valued logic.

A method of constructing Hilbert-type axiom systems for standard many-valued propositional logics was offered by Rosser and Turquette. Although this method is considered to be a solution of the problem of axiomatisability of a wide class of many-valued logics, the article demonstrates that it fails to produce adequate axiom systems. The article concerns finitely many-valued propositional logics of Łukasiewicz. It proves that if standard propositional connectives of the Rosser–Turquette axiom systems are definable in terms of the propositional connectives of Łukasiewicz’s (...) logics, and thus, they are normal ones, then every Rosser–Turquette axiom system for a finite-valued Łukasiewicz’s logic is semantically incomplete. (shrink)

We introduce a principle of local collection for compositional truth predicates and show that it is arithmetically conservative over the classically compositional theory of truth. This axiom states that upon restriction to formulae of any syntactic complexity, the resulting predicate satisfies full collection. In particular, arguments using collection for the truth predicate applied to sentences occurring in any given (code of a) proof do not suffice to show that the conclusion of that proof is true, in stark contrast to the (...) case of the induction scheme. We analyse various further results concerning end-extensions of models of compositional truth and the collection scheme for the compositional truth predicate. (shrink)

Preview: It is not a gross exaggeration to state that philosophy is an inherently urban phenomenon. Born and largely practiced in the Greek polis, it was developed throughout the ages in various places that more often than not were situated within city walls. Even if, udoubtedly, philosophy has never been limited solely to urban spaces, it has become more and more embedded in cities over the centuries. Consequently, from the 19th century on it has been part and parcel of the (...) intellectual life whose main centers have been towns since it has been almost exclusively researched on and taught within academic institutions. (shrink)

In this article we investigate the relationship between legal translation and legal interpretation. The common wisdom is that these activities are closely related, but the nature of that relationship remains disputable. We adopt the perspective of legal theory—as opposed to the perspective of translation studies—which seems to be underrepresented in the literature of the subject. We start with distinguishing between the two notions of legal interpretation: the wide sense and the narrow sense. We argue that the relationship between legal translation (...) and legal interpretation changes significantly depending on the notion of legal interpretation that is assumed. The wide sense is often assumed by translation scholars and it renders legal interpretation as a necessary prerequisite for legal translation. Jurists, on the other hand, usually assume the narrow sense which renders legal interpretation and legal translation as two distinct activities with some shared features. We then focus on four issues of legal interpretation in the narrow sense: the types of legal interpretive problems, the creation of legal interpretive problems, the methods of legal interpretation, the resolution of legal interpretive problems. We conclude with a detailed comparison of legal translation and legal interpretation in the context of those four issues. (shrink)

Artykuł jest próbą analizy koncepcji minimalistycznej neurofilozofii autorstwa Henrika Waltera w kontekście dyskusji dotyczącej problemu psychofizycznego. Bezpośrednio związana z ową koncepcją teoria o „zróżnicowanej metafizyce” została w tekście powiązana z ideą pluralizmu eksplanacyjnego i ukazana jako metodologiczna alternatywa dla poszukiwania fundamentalnych teorii świadomości. Jednocześnie poza ewentualnymi zaletami metafilozoficznej refleksji podejmowanej w ramach minimalistycznej neurofilozofii zarysowane zostały jej podstawowe ograniczenia i problemy związane m.in. z uznaniem superweniencji za punkt łączący różnorodne stanowiska neurofilozoficzne.

IntroductionThe rapid development of technology has led to the transfer of entertainment to the virtual world. Many games and multimedia applications use the so-called augmented reality. With the development of a new technological branch, a new health problem has emerged, which is infoholic addiction, attracting people with the specific functionality that is cyberspace and the virtual world.ObjectiveThe study aimed to assess health behaviors and the risk of addiction among users of urban multimedia games. Research methodology. The study was conducted among (...) players 1,134 of urban multimedia games—Pokemon GO, in the period March–June 2021. A 990 correctly completed questionnaires were included in the final analyses. The author’s questionnaire was used in the study, which included two standardized measurement scales in the Polish abbreviated version: a questionnaire of emotions and sensations associated with electronic entertainment and a questionnaire on addiction to electronic forms of entertainment. Statistica 13.0 program was used for statistical processing of the data. The probability level was p < 0.05.ResultsThe profile of the gamer was identified as male, aged 18–30 years, with secondary education, not in a relationship, living in a city of more than 100 thousand inhabitants—60.1% of gamers met these criteria. Respondents played urban multimedia games daily. About 26.3% of respondents played this type of game 2–3 h a day. In terms of physical fitness, 64.3% of respondents felt that physical fitness had improved as a result of playing multimedia urban games. In terms of mental condition, most of the respondents said that nothing had changed. It was observed that 72.3% of respondents had some risk of addiction to urban multimedia games.ConclusionUsers of urban multimedia games were usually adult men living in big cities. It was also shown that the defined profile of the player was characterized by a higher risk of addiction to electronic forms of entertainment. It was observed that the respondents most often played urban multimedia games every day in a maximum of two-hour sessions. Based on the tools used, it can be concluded that the study group was characterized by a certain risk of addiction to urban multimedia games. (shrink)

I would like to identify a certain weakness which is characteristic, in my view, of the ‘critique of the model of representation’ or of the project of ‘overturning the hegemony of representation’, popular in philosophical circles inspired by Heidegger’s writings. According to Heidegger’s influential interpretation of modernity — which, by the way, is indebted to Hegelian philosophy of history — the logic of the development of modern thought is entirely subordinated to one idea: the idea of absolute domination of the (...) subject as the power of discursive representation. This interpretation provides a unified vision of the history of modernity as the history of increasing relativization of all aspects of reality to the subject and its capacity to represent and to form judgements. This unified picture of modernity constitutes the common point of reference and inspiration for many intellectual enterprises under the banner of deconstruction, hermeneutics, philosophy of difference, and the critique of Enlightenment. The same interpretation is explicitly or tacitly assumed in postmodernist accounts of contemporary culture, according to which our task as post-modern thinkers is to abandon, overthrow, and shatter the model of representation. (shrink)

Over the past decade work engagement has gained both business and academia attention. With growing number of studies and meta-analyses the concept of work engagement is one of the pillars of positive work and organizational psychology. This systematic review presents the current state of research on work engagement in Poland. Results confirmed that work-engagement studies have not yet reached the threshold to conduct meta-analysis. The review of measurement methods and synthesis of findings allows to identify strengths and gaps in Polish (...) studies. Discussion of limitations and biases in current research is accompanied with urge to overcome them and develop thriving stream of research on work engagement. (shrink)

A signboard is an element of the linguistic landscape of a given place. The linguistic landscape is a space open to everyone, but it may be experienced differently by people from various generations. To examine the extent and quality of comfort or discomfort resulting from linguistic exclusion in public spaces, in the article the linguistic landscape of the center of Poznań is analyzed in terms of the absence and presence of the native language of residents and visitors to this place. (...) The research material comes from the most frequented places in this city and includes signs of private establishments (“bottom-up tokens”), which contribute to the linguistic landscape of Poznań. The study of linguistic exclusion takes into account the diverse linguistic competencies of five living generations of Poles. It aims to identify potential causes of the feeling of exclusion in open urban spaces for specific groups of Poles. (shrink)