Joseph Agassi, Tel-Aviv University, Israel, and York University, Toronto, Canada Arianna Betti, Vrije Universiteit Amsterdam, The Netherlands Jaakko Hintikka, Boston University, USA Alexander Karpenko, Moscow State University, Russia Wolfgang Künne, University of Hamburg, Germany Iris Loeb, Vrije Universiteit Amsterdam, The Netherlands Roman Murawski, Pozna? University, Poland Ilkka Niiniluoto, University of Helsinki, Finland David Pearce, Universidad Politécnica de Madrid, Spain Gabriel Sandu, University of Helsinki, Finland Maria van der Schaar, Leiden University, The Netherlands Peter Simons, Trinity College Dublin, Ireland

“This is a Festschrift volume dedicated to Jan Woleński, whose extensive work in the history of Polish logic indeed deserves one. … the volume contains new material interesting for anyone interested in Polish logic or history of logic in general.” (Rafal Urbaniak, History and Philosophy of Logic, Vol. 38 (1), 2017)

• Series Editor's Foreword Acknowledgements Notes on Contributors Introduction: The History and Philosophy of Polish Logic: Some Basic Thoughts; K.Mulligan, K.Kijania-Placek and T.Placek PART I: LOGIC, PROOF AND MODELS Many Valued Logic in Poland: the Golden Age; A.S.Karpenko Dependence and Independence of Quantifiers: Truth, Proof and Choice Functions; G. Sandu Sixty Years of Stable Models; D. Pearce Wooden Horses and False Friends. On the Logic of Adjectives; M. van der Schaar Proof, Probability or Plausibility; J. Agassi PART II: TRUTH AND CONCEPTS Truth Defined and Undefined; J. Hintikka Against Relative Truth; I. Niniluoto Truth without Truths? Propositional Attitudes without Propositions? Meaning without Meanings?; W. Künne Formal Concepts; K. Mulligan PART III: ONTOLOGY, MEREOLOGY AND THE PHILOSOPHY OF MATHEMATICS Arithmetic in Le?niewski's Ontology; P. Simons Le?niewski, Tarski and the Axioms of Mereology; A. Betti, From Mereology to Boolean Algebra: The Role of Regular Open Setsin Alfred Tarski's Work; I. Loeb Philosophy of Mathematics and Logic in Cracow Between the Wars; R. Murawski A Selection of Jan Wole?ski's Publications Index of Names Index

Joseph Agassi, Tel-Aviv University, Israel, and York University, Toronto, Canada Arianna Betti, Vrije Universiteit Amsterdam, The Netherlands Jaakko Hintikka, Boston University, USA Alexander Karpenko, Moscow State University, Russia Wolfgang Künne, University of Hamburg, Germany Iris Loeb, Vrije Universiteit Amsterdam, The Netherlands Roman Murawski, Pozna? University, Poland Ilkka Niiniluoto, University of Helsinki, Finland David Pearce, Universidad Politécnica de Madrid, Spain Gabriel Sandu, University of Helsinki, Finland Maria van der Schaar, Leiden University, The Netherlands Peter Simons, Trinity College Dublin, Ireland

“This is a Festschrift volume dedicated to Jan Woleński, whose extensive work in the history of Polish logic indeed deserves one. … the volume contains new material interesting for anyone interested in Polish logic or history of logic in general.” (Rafal Urbaniak, History and Philosophy of Logic, Vol. 38 (1), 2017)

• Series Editor's Foreword Acknowledgements Notes on Contributors Introduction: The History and Philosophy of Polish Logic: Some Basic Thoughts; K.Mulligan, K.Kijania-Placek and T.Placek PART I: LOGIC, PROOF AND MODELS Many Valued Logic in Poland: the Golden Age; A.S.Karpenko Dependence and Independence of Quantifiers: Truth, Proof and Choice Functions; G. Sandu Sixty Years of Stable Models; D. Pearce Wooden Horses and False Friends. On the Logic of Adjectives; M. van der Schaar Proof, Probability or Plausibility; J. Agassi PART II: TRUTH AND CONCEPTS Truth Defined and Undefined; J. Hintikka Against Relative Truth; I. Niniluoto Truth without Truths? Propositional Attitudes without Propositions? Meaning without Meanings?; W. Künne Formal Concepts; K. Mulligan PART III: ONTOLOGY, MEREOLOGY AND THE PHILOSOPHY OF MATHEMATICS Arithmetic in Le?niewski's Ontology; P. Simons Le?niewski, Tarski and the Axioms of Mereology; A. Betti, From Mereology to Boolean Algebra: The Role of Regular Open Setsin Alfred Tarski's Work; I. Loeb Philosophy of Mathematics and Logic in Cracow Between the Wars; R. Murawski A Selection of Jan Wole?ski's Publications Index of Names Index

Joseph Agassi, Tel-Aviv University, Israel, and York University, Toronto, Canada Arianna Betti, Vrije Universiteit Amsterdam, The Netherlands Jaakko Hintikka, Boston University, USA Alexander Karpenko, Moscow State University, Russia Wolfgang Künne, University of Hamburg, Germany Iris Loeb, Vrije Universiteit Amsterdam, The Netherlands Roman Murawski, Pozna? University, Poland Ilkka Niiniluoto, University of Helsinki, Finland David Pearce, Universidad Politécnica de Madrid, Spain Gabriel Sandu, University of Helsinki, Finland Maria van der Schaar, Leiden University, The Netherlands Peter Simons, Trinity College Dublin, Ireland

“This is a Festschrift volume dedicated to Jan Woleński, whose extensive work in the history of Polish logic indeed deserves one. … the volume contains new material interesting for anyone interested in Polish logic or history of logic in general.” (Rafal Urbaniak, History and Philosophy of Logic, Vol. 38 (1), 2017)

• Series Editor's Foreword Acknowledgements Notes on Contributors Introduction: The History and Philosophy of Polish Logic: Some Basic Thoughts; K.Mulligan, K.Kijania-Placek and T.Placek PART I: LOGIC, PROOF AND MODELS Many Valued Logic in Poland: the Golden Age; A.S.Karpenko Dependence and Independence of Quantifiers: Truth, Proof and Choice Functions; G. Sandu Sixty Years of Stable Models; D. Pearce Wooden Horses and False Friends. On the Logic of Adjectives; M. van der Schaar Proof, Probability or Plausibility; J. Agassi PART II: TRUTH AND CONCEPTS Truth Defined and Undefined; J. Hintikka Against Relative Truth; I. Niniluoto Truth without Truths? Propositional Attitudes without Propositions? Meaning without Meanings?; W. Künne Formal Concepts; K. Mulligan PART III: ONTOLOGY, MEREOLOGY AND THE PHILOSOPHY OF MATHEMATICS Arithmetic in Le?niewski's Ontology; P. Simons Le?niewski, Tarski and the Axioms of Mereology; A. Betti, From Mereology to Boolean Algebra: The Role of Regular Open Setsin Alfred Tarski's Work; I. Loeb Philosophy of Mathematics and Logic in Cracow Between the Wars; R. Murawski A Selection of Jan Wole?ski's Publications Index of Names Index