The Polish School of Argumentation: A Manifesto

Building on our diverse research traditions in the study of reasoning, language and communication, the Polish School of Argumentation integrates various disciplines and institutions across Poland in which scholars are dedicated to understanding the phenomenon of the the ﬁrst key step in facilitating and fostering our research movement, which joins people with a common research focus, complementary skills and an enthusiasm to work together. This statement—the Manifesto —lays the foundations for the research programme of the Polish School of Argumentation.

reflected in the research of the Lvov-Warsaw School, and then its successors in Artificial Intelligence and legal theory, as well as in the studies of Polish rhetoricians (Sect. 4, see also (Groarke 2013)). Because of the natural strong resemblance between reasoning, language and communication and the phenomenon of argumentation, Polish researchers became increasingly interested in exploring links between their investigations and the flourishing area of the contemporary theory of argument. Now that argument studies have matured in Poland, we are ready to establish a network of close cooperation and organisational infrastructure to facilitate and foster our research movement (Sect. 6).

Force of Argument: Reason, Trust and Cognition
The common motif in the research of the Polish School of Argumentation is the force of argument. We focus on its structural, institutional and mental aspects. The basic assumption is that argumentation is a reason-guided activity. In other words, we take its structure to be shaped first by rules and principles that should be studied with the use of logic. Arguments, however, also contribute to many institutional aspects of social reality, and in particular, affect and strengthen the relation of trust between participants in public life. Finally, we take into account the mental determinants of argumentative practice-in other words, the fact that the way real arguments function depends on the cognitive architecture of the human mind.
In the classical (i.e. logical) tradition, the force of an argument is interpreted as the validity of an argument. The problem of argument evaluation, which is central to argumentation theory, deals with questions such as these: How strong is the argument? To what degree is the conclusion justified by the premises? To what degree should I believe a thesis given the reasons you give to believe it? The ability to provide answers to these questions is fundamental to a proper understanding of cognitive processes, growth of knowledge, and progress in science, as well as for elaborating on criteria for discursive practice in politics, law, education, economics and other forms of public life.
Natural argumentation is, however, a highly complex phenomenon and thus logic should be supported by other disciplines so that the issues mentioned above can be approached in an insightful and multifaceted manner. In particular, arguments are expressed in natural language through an assortment of communicative intentions, which raises further questions: How do people express reasons in language? What types of illocutionary acts and rhetorical techniques do they use in argumentative contexts? What are the institutional and ethotic preconditions for making successful argumentative acts? Arguments are also exchanged in a complex process of communication, which leads to problems such as these: What are the rules of rational discussion? How do we play dialogue games? Furthermore, once we begin to consider the dialogical context of argumentation, the problem of persuasion emerges in a natural way as well: How does our trust in a speaker influence what we decide to believe? What role does persuasion and argumentation play in our cognition? In order to pursue and explore different questions triggered by the study of the complex realm of arguing, the Polish School of Argumentation integrates various complementary theories, perspectives, approaches and disciplines.

Methodological Programme for the Interdisciplinary Approach
The interdisciplinary approach adopted by the Polish School of Argumentation aims to integrate research results from different disciplines describing various aspects and determinants of argumentative practice (Budzynska et al. 2012;Stalmaszczyk 2013). We bring together a variety of perspectives from philosophy, logic, linguistics, rhetoric, psychology, cognitive science, AI, law, and other fields that lie within the areas of expertise of our group's members.
Such a challenging diversity necessitates careful selection and elaboration of research methods. The development of a methodologically coherent research programme requires a unified and well-specified conceptual apparatus that can be used to compare theories and data from various disciplines, approaches, and paradigms (see e.g. a dictionary of argumentation theory terminology by Szymanek (2001); in Polish). With such an apparatus in hand one could not only build a comprehensive and multidimensional model of argumentative practice, but also ask new and original research questions that could lead to new research areas and projects.
We claim that methods which deal with real-life data, such as corpus studies and experiments, should be combined with the precision and rigour characteristic of formal and analytical approaches. Theoretical and abstract frameworks offered by disciplines such as philosophy, logic and AI should be systematically confronted, in terms of both inspiration and verification, with the real input provided by such disciplines as linguistics, rhetoric, cognitive science and law.
Consequently, we place increased emphasis on integrating the following: (1) the formal perspective on the modelling of argumentation and dialogues with the informal approach developed by, e.g., pragmatists and speech act theorists; (2) conceptual studies with empirical-oriented research; (3) the construction of theoretical models with their practical application for describing, evaluating and managing real argumentative practices in such domains as public debates, politics, law, education, medical discourse, and so on; and (4) research investigations with teaching programmes implementing the theoretical developments of the Polish School of Argumentation. This integration is not a unifying synthesis, but an aggregation of mutually irreducible approaches specific to particular disciplines represented by the signatories of the manifesto.

Our Roots
The main claim with regard to the roots of the Polish School of Argumentation is that its future development may and should be inspired by the diversity of philosophical, logical, computational, linguistic, rhetorical, legal, cognitive, psychological, and educational approaches to language, reasoning and communication which were founded or developed within Polish academia in the 20th century. One important tradition is the logico-methodological legacy of the Lvov-Warsaw School (LWS), a Polish research movement that was most active from 1895 to 1939 (Woleński 2013). Apart from outstanding achievements in formal logic, the rich legacy of the LWS encompasses a great variety of ideas in epistemology, ontology, philosophy of language, semiotics, philosophy of reasoning, methodology of science, legal theory, ethics and aesthetics.
The philosophical and logical accounts of arguments within the Polish School of Argumentation may be inspired by the works of representatives of the LWS who attempted to solve similar problems to those present in contemporary philosophy of argument (Koszowy and Araszkiewicz 2014): Kazimierz Twardowski (the founder the LWS, whose ideas are assessed as strikingly similar to the study of argumentation in North America (Groarke 2013)), and many others, including Tadeusz Czeżowski, Seweryna Łuszczewska-Romahnowa, Tadeusz Kotarbiński, Klemens Szaniawski, and Józef M. Bocheński. Their research postulates include many that are particularly promising for further developments, such as: the conception of logical culture in research and teaching; opposition to irrationalism and insistence on proper justification of accepted propositions; the broad conception of logic, including, but not limited to, deductive reasoning; and an emphasis on proper inference and other knowledge-gaining procedures, such as defining or questioning.
After World War II, the influence of this tradition on Polish philosophy remained particularly strong (Wójcicki 1997 (Ajdukiewicz 1974;Kawalec 2012), is identified (Woleński and Lapointe 2009) as a markedly pluralism-oriented constituent of the Lvov-Warsaw School approach to argumentation with particular emphasis on scientific inferences. In functional logical semiotics, the studies focused on the usage of various types of expressions and the distinction between manner of use (of an expression) and use (of an expression) (Pelc 1969(Pelc , 1970. The Lvov-Warsaw School's developments in logic have significantly influenced Polish research in the area of Artificial Intelligence. Strong connections between computational models and argumentation theory can be found in the investigations of multi-agent systems carried out mainly by a group in Warsaw. The representation of autonomous intelligent systems of collaborating agents entails the description of complex interactions such as cooperation, coordination and negotiation. These paradigmatic activities are usually achieved with extensive use of communication. The first step in the research was the synthesis of three approaches: the semi-formal theory of dialogue (Walton and Krabbe 1995), the speech acts theory (Austin 1962;Searle 1969), and Dunin-Kȩplicz and Verbrugge's theory of collective motivational attitudes in Beliefs, Desires, Intentions (BDI) systems. This formalism was used to show how to create collective intention through dialogue, mainly persuasion (Dignum et al. 2001) and deliberation (Dunin-Kȩplicz and Verbrugge 2010).
Another important line of research, represented by the Polish School of AI (Skowron et al. 2013), applies methods of rough set theory (Pawlak 1982) and rough-granular computing (Stepaniuk 2008). The school focuses on approximation of and reasoning about vague concepts using complex patterns which can be treated as arguments 'for' or 'against' concepts. Such arguments can also be referred to as the computational building blocks necessary for cognition, following the suggestion of Leslie Valiant (the 2010 Turing award winner).
The Polish School of Argumentation also builds on the best traditions of legal logic and the theory of legal argumentation developed mainly in Krakow and Poznań. The research in Krakow has been significantly influenced by the methodological postulates of precision, rigour and clarity advanced by the LWS. The special focus has been on issues such as extensional semantics of legal interpretation (Woleński 1972), the burden of argumentation in legal disputes (Gizbert-Studnicki 2010) or the pragma-dialectic account of legal argumentation (Grabowski 1999). Several academics who were educated there continued and popularised this research approach in other institutions in Poland (such as Jerzy Wróblewski, who lived and worked in Łódź (Wróblewski 1992)) and abroad (such as Aleksander Peczenik in Lund, Sweden (Peczenik 1966(Peczenik , 2008).
In Poznań, argument studies were initiated by Czesław Znamierowski and continued by his students, including Ziembiński (1966), Nowak (1973), Patryas (1988) and Zieliński and Ziembiński (1988). Ziembiński's textbook Practical Logic (Ziembiński 1955) has been printed in twenty-six editions, and as a consequence many Polish lawyers share the approach to logic characteristic of the studies in Poznań.
In parallel to the research of the LWS and its successors, a strong tradition of rhetorical studies has developed in Poland since the sixteenth century (see e.g. (Górski 1559;Konarski 1767)). A recent perspective combines an interest in rhetoric with a professional background in disciplines such as linguistics, literary criticism, discourse analysis, sociology, anthropology, history, or cultural studies (see e.g. (Lichański 2003;Skwara 2006;Barłowska et al. 2011;Załȩska 2012) for an overview). As a result, this approach privileges a naturalist, humanist and essentially informal approach to argumentation, the exploration of argumentation through the notion of discourse, and an emphasis on sociocultural features and conventions imposed by specific genres of discourse (Dobrosielski 1957;Mayakowska 1936;Ziomek 1990;Bogołȩbska 2006). The rhetorical perspective offers insights on heterogeneous factors that shape the actual persuasiveness of natural arguments, complementing the more abstract and formalised approaches to the study of argumentation typical for logic, AI, and computational and cognitive models. In 2001, the rhetorical community established an autonomous organisation, the Polish Rhetorical Society (PTR), and its journal Forum Artis Rhetoricae.
The Polish School of Argumentation builds upon and integrates this variety of traditions in pursuit of a comprehensive and multidimensional model of argumentative practice.

Research Topics
The combination of the theoretical background of philosophy, logic and AI with the real-data, practical verification of research results in rhetoric, linguistics and law is reflected in the multidisciplinary composition of our group. The research topics of the Polish School of Argumentation reflect its leitmotif of the force of argument. Thus the evaluation of argument force is the central object of interest, initiated in Poland, mainly, by Marciszewski (1994a, b), Hołówka (1998Hołówka ( , 2007, Suchoń (2005Suchoń ( , 2008 and Tokarz (1985Tokarz ( , 1987Tokarz ( , 2006. In our approach, various aspects of the evaluation are related to the ideas of reason, cognition and trust. We propose to distinguish three aspects of evaluation, depending on whether the research focuses on (1) the force of argument in itself: research on the rationality and objective value of argumentation (the logicophilosophical aspect); (2) the force of argument with reference to the cognition that an argument can provide: research on the cognitive effectiveness of argumentation (the cognitive and rhetorico-persuasive aspect); or (3) the force of argument with reference to the cognition which an argument can provide, but relating to yet something else, that is, to a certain general goal represented by the idea of agreement between the participants in a discussion: research on the consensual effectiveness of argumentative dialogue based on trust (the pragma-dialectical and social aspect).
Reason The idea of reason is taken up in the study of the logical structure of everyday argumentation, resulting in formal models of it, such as a dialogue system for the identification and elimination of formal fallacies (Yaskorska et al. 2013;Kacprzak and Yaskorska 2014;Kacprzak and Sawicka 2014), probabilistic and inductive models of justification (Kawalec 2003), an account of real premises of argumentation for dynamic epistemic logic (Bryniarski et al. 2011), a description of intelligent agent judgement (Gomolińska 2005), and a model of teleological interpretation of statutory legal rules (Ż urek and Araszkiewicz 2013).
We investigate specific types and properties of arguments, e.g. arguments from similarity and slippery slope arguments (Szymanek 2009;Wieczorek 2013), abductive reasoning (Urbański 2009), players' strategies in dialogue games Dziubiński and Goyal 2013), the role of definition in argumentation (Kublikowski 2009), and axiological aspects of argumentation (Lewiński 2012;Cap 2013). We are interested in exploring methods of representation and numerical evaluation of argument structures (Pogonowski 2011;Selinger 2014) and in applications of argumentation theory and logic in political discourse (Cap 2013;Skulska et al. 2013) and law (Nieznański 2010;Stawecki 2012). In addition, various software tools supporting analysis of the rational aspects of evaluation have been developed, such as Perseus (Budzynska et al. 2009), Araucaria-PL (Budzynska 2011) or MIZAR (Trybulec 1978).
The research in the area of multi-agent systems initiated in Warsaw (see Sect. 4) has recently evolved towards a proper treatment of incomplete and inconsistent information appearing in dialogue and typically originating from multiple sources of varying credibility, quality or significance. To this end, Dunin-Kȩplicz and Strachocka exploit a paraconsistent and nonmonotonic approach to speech acts, argumentation schemes and dialogues (Dunin-Kȩplicz and Strachocka 2013). Rather than reasoning in multi-modal logical systems of high complexity they lean towards querying paraconsistent knowledge bases built upon 4QL, the new paraconsistent 4-valued query language, designed by Małuszyński and Szałas (2013).
Polish authors, however, emphasise that while the role of logical reconstruction of arguments and evaluation of their force is important, it should not be overestimated, especially when applied to everyday reasoning (Kisielewicz 2011) or juristic argumentation (Grabowski 2003;Peczenik 1988;Smolak 2003). The latter should rather be understood as a special case of general practical or moral discourse. The phenomenon of non-deductive transformations ('jumps') in the domain of juristic justificatory reasoning (Peczenik and Wróblewski 1985) is an obvious example of reasoning that cannot be fully explained and evaluated on a logical basis.
Trust Our models of dialogue explore the concept of mutual trust between dialogue participants, who are often confined to relying on strict intra-dialogical rules. Issues related to the social and pragmatic aspects of communication are integrated into our research to describe and explain how trust influences the process of argumentation and its outcomes in various domains (e.g. law, politics or education).
The idea of trust is specifically covered by the fields of our research which refer to ethos and pathos-treated as communicative structures independent from logos (Budzynska 2013); parameters of an expert's good reputation, such as solidity and trustworthiness (Załȩska 2011); or the role of questions in creating a scientist's image (Sokół 2010). Members of the school investigate argument, dialogue and trust together with their relationship to certain pragmatic and dialectic phenomena, such as conversational implicatures (Puczyłowski 2012), illocutionary context and ethotic felicity conditions (Witek 2013;Budzynska and Witek 2014;Malinowski 2003), and the role of argumentation and deliberation in civil society (Tomczyk 2011).
Cognition The Polish School of Argumentation is also interested in applying cognitive frameworks to elaborate on models of dialogues and argument. The research topics of our group include goals and effects of persuasive dialogues (Debowska-Kozlowska 2014), argument principles and cognitive-pragmatic strategies associated with legitimisation through fear appeals in political discourse (Wybraniec-Skardowska 2010;Cap 2013), links between fallacies and mental models (Wieczorek 2007), the role of cultural scripts in manipulation (Kuzio 2014), and the nature of cognition and research activity in mathematics (Pogonowski 2012).
We use corpus analysis (see, e.g., ArgDB-pl-a Polish online corpus of analysed argumentation, http://argumentacja.pdg.pl/argdbpl/) and experimental studies to explore issues such as critical analysis of values in political discourse (Sowińska 2013;Kielar 2011), dynamics and structure of argumentation in negotiations (Jochemczyk and Nowak 2010), and argumentative skills in preschoolers' narrative discourse (Rytel 2012). We also pursue methods of formalisation of cognitive and rhetoric phenomena such as a logic of questions in a dialogue (Wiśniewski 1996;Urbański 2001), and a formal framework for knowledge management and acquisition (Garbacz et al. 2012).

Organisation and Infrastructure
Members of the Polish School of Argumentation represent many different disciplines, departments and institutions across Poland. Our goal is to maintain and support this diversity while at the same time developing and actively promoting a coherent interdisciplinary network of close cooperation and effective teamwork amongst individual scholars and research groups focusing on the leitmotif of the force of argument.
We place particular stress on strong collaboration with Polish research associations, organisations and groups working in areas related to argument studies, such as the Polish Rhetorical Society (PTR), the Polish Semiotic Society (PTS), the Group of Logic, Language and Information (GLLI), the Polish Pragmatics Association (PPA) and the Polish Association for Logic and Philosophy of Sciences (PTLiFN). We also maintain close ties with the international community through participation in collaborative projects and key conferences, as well as cooperation with various associations and centres for argument studies.
The ArgDiaP organisation (http://argdiap.pl/) provides infrastructure facilitating the networking process and fosters research on argumentation in Poland, including the research of the Polish School of Argumentation. A strong focus is placed on support venues for the exchange of ideas and knowledge transfer, such as conferences, workshops, graduate schools and publishing initiatives. Since 2008, ArgDiaP has organised 11 workshops, at which over 60 papers have been presented, hosting over 50 speakers from 20 leading Polish universities and research institutes and 10 speakers from the US, Canada, Germany, France, the Netherlands, Sweden and the UK. Our special guests have included Frans van Eemeren (Amsterdam), Leo Groarke (Windsor, Canada), Chris Reed (Dundee, UK) and John R. Searle (Berkeley). The Stanford Encyclopedia of Philosophy recognised the ArgDiaP workshops as one of the world's five most important events in the theory of argumentation.
The Interdisciplinary Graduate School on Argumentation and Rhetoric (IGSAR) has been associated with ArgDiaP conferences since 2013. Students first participate in two days of tutorials serving as an introduction to the talks presented at the conference, and then take part in the conference itself. Our long-term mission is to contribute to the establishment of teaching standards by implementing the theoretical development of the School and to support the best educational practices for argumentation theory in Poland (Domański et al. 2012;Wasilewska-Kamińska 2014).
Members of our group are engaged in the organisation and coordination of many other events, such as conferences on Applications of Logic in Philosophy and the Foundations of Mathematics (nineteen editions); Autonomous Agents and Multiagent Systems (AAMAS) (two editions); Intelligent Agent Technology (IAT) (two editions); Alternative Methods of Argumentation in Law (three editions); Philosophy of Language and Linguistics (three editions); and New Developments in Linguistic Pragmatics (six editions); as well as workshops on Formal Approaches to Multi-Agent Systems (FAAMAS) (four editions); and Legal Informatics and Legal Information Technology (LIT) (six editions).
In 2009, a publishing platform was established for the Polish School of Argumentation. Since that time our argumentation series has released three special issues dedicated to: major research strands in the philosophy of argument (in its introduction to Informal Logic, the Stanford Encyclopedia of Philosophy comments that it has published an important special issue on the field) (Koszowy 2009); computational approaches to argumentation (Koszowy 2011); and pragmatics and dialectics of argument

Conclusions
The Polish School of Argumentation brings together scholars representing a variety of complementary disciplines while sharing the same research focus-to understand the fundamental and complex problem of the force of argument. The movement aims to transform the landscape of argument studies in Poland by supporting a national, interdisciplinary and integrated network closely linked to and collaborating with the international community.
We believe that this integration allows us to go beyond individual research efforts, opening up new and exciting opportunities and perspectives. Our mission is to abide by and adapt to the requirements of modern academia, establish the best practices in research and teaching, and develop a stimulating and advantageous environment for the young generation of the Polish School of Argumentation.