"The influence of [Kazimierz] Twardowski on modern philosophy in Poland is all-pervasive. Twardowski instilled in his students a passion for clarity [...] and seriousness. He taught them to regard philosophy as a collaborative effort, a matter of disciplined discussion and argument, and he encouraged them to train themselves thoroughly in at least one extra-philosophical discipline and to work together with scientists from other fields, both inside Poland and internationally. This led above all [...] to collaborations with mathematicians, so that the Lvov school of philosophy would gradually evolve into the Warsaw school of logic [...]. Twardowski taught his students, too, to respect and to pursue serious research in the history of philosophy, an aspect of the tradition of philosophy on Polish territory which is illustrated in such disparate works as [Jan] Lukasiewicz's ground-breaking monograph on the law of non-contradiction in Aristotle and [Wladyslaw] Tatarkiewicz's highly influential multi-volume histories of philosophy and aesthetics [...] The term `Polish philosophy' is a misnomer [...] for Polish philosophy is philosophy per se; it is part and parcel of the mainstream of world philosophy - simply because [...] it meets international standards of training, rigour, professionalism and specialization."
- Barry Smith (from: "Why Polish Philosophy does Not Exist")
Jacek JADACKI, Jacek PASNICZEK: The Lvov-Warsaw School: Its Contemporary Inheritors and Investigators in Poland and Abroad Part I. The School: Its Origins and Significance Barry SMITH: Why Polish Philosophy Does Not Exist Jacek JADACKI: The Lvov-Warsaw School and Its Influence on Polish Philosophy of the Second Half of the 20th Century Part II. Objects and Properties John T. KEARNS: An Elementary System of Ontology Jacek PASNICZEK: Do We Need Complex Properties in Our Ontology? Andrzej BILAT: Objects, Properties and Russell's Paradox Joanna ODROWAZ -SYPNIEWSKA: On the Notion of Identity Part III. Prognoses, Norms and Questions Tomasz PLACEK: A Puzzle about Semantic Determinism Max URCHS: Causality in Chaotic Environment Jan WOLENSKI: Three Contributions to Logical Philosophy Andrzej WISNIEWSKI: Reducibility of Safe Questions to Sets of Atomic Yes-No Questions Part IV. Categorial Grammar Peter SIMONS: Languages with Variable-Binding Operators: Categorial Syntax and Combinatorial Semantics Urszula WYBRANIEC-SKARDOWSKA: On the Formalization of Classical Categorial Grammar Part V. Intentionality, Sense and Consequence Liliana ALBERTAZZI: Retrieving Intentionality: A Legacy from the Brentano School Kazimierz TRZESICKI: Logical and Methodological Assumptions of the Ajdukiewicz's and Kripke-Putnam's Views of Meaning Anna JEDYNAK: On Linguistic Relativism Dale JACQUETTE: Tarski's Analysis of Logical Consequence and Etchemendy's Criticism of Tarski's Modal Fallacy Part VI. Truths and Falsehoods Arianna BETTI: Sempiternal Truth. The Bolzano-Twardowski-Lesniewski Axis Artur ROJSZCZAK: From the Act of Judging to the Sentence: The Truth-Bearer and the Objectivisation of Truth Wojciech ZELANIEC: What Does "Truth in Virtue of Meaning" Really Explain? Jozef MISIEK: Do We Need a Definition of Truth? Part VII. Rationality: Its Criteria and Definition Ryszard KLESZCZ: Criteria of Rationality Mieszko TALASIEWICZ: On the Concept of Rationality