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Profile: Leszek Wronski (Jagiellonian University)
  1.  66
    On Minkowskian Branching Structures☆.Leszek Wroński & Tomasz Placek - 2009 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 40 (3):251-258.
    We introduce the notion of a Minkowskian Branching Structure ("MBS" for short). Then we prove some results concerning the phenomenon of funny business in its finitary and infinitary variants.
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  2.  12
    The Common Cause Principle. Explanation Via Screening Off.Leszek Wronski - unknown
    My Ph.D. dissertation written under the supervision of Prof. Tomasz Placek at the Institute of Philosophy of the Jagiellonian University in Kraków. In one of its most basic and informal shapes, the principle of the common cause states that any surprising correlation between two factors which are believed not to directly influence one another is due to their common cause. Here we will be concerned with a version od this idea which possesses a purely probabilistic formulation. It was introduced, in (...)
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  3. On Infinite EPR-Like Correlations.Tomasz Placek & Leszek Wroński - 2009 - Synthese 167 (1):1-32.
    The paper investigates, in the framework of branching space–times, whether an infinite EPR-like correlation which does not involve finite EPR-like correlations is possible.
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  4. A New Way to Block a Dutch Book Argument, or The Stubborn Non-Probabilist.Leszek Wronski - manuscript
    We point out a yet unnoticed flaw in Dutch Book arguments that relates to a link between degrees of belief and betting quotients. We offer a set of precise conditions governing when a nonprobabilist is immune to the classical Dutch Book argument. We suggest that diachronic Dutch Book arguments are also affected.
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  5.  16
    Completion of the Causal Completability Problem.Michał Marczyk & Leszek Wroński - 2015 - British Journal for the Philosophy of Science 66 (2):307-326.
    We give a few results concerning the notions of causal completability and causal closedness of classical probability spaces . We prove that any classical probability space has a causally closed extension; any finite classical probability space with positive rational probabilities on the atoms of the event algebra can be extended to a causally up-to-three-closed finite space; and any classical probability space can be extended to a space in which all correlations between events that are logically independent modulo measure zero event (...)
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  6.  9
    Only Countable Reichenbachian Common Cause Systems Exist.Leszek Wroński & Michał Marczyk - 2010 - Foundations of Physics 40 (8):1155-1160.
    In this paper we give a positive answer to a problem posed by Hofer-Szabó and Rédei (Int. J. Theor. Phys. 43:1819–1826, 2004) regarding the existence of infinite Reichenbachian common cause systems (RCCSs). An example of a countably infinite RCCS is presented. It is also determined that no RCCSs of greater cardinality exist.
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  7.  78
    Towards a New Theory of Historical Counterfactuals.Jacek Wawer & Leszek Wroński - 2015 - In Pavel Arazim & Michal Dancak (eds.), Logica Yearbook 2014. College Publications. pp. 293-310.
    We investigate the semantics of historical counterfactuals in indeterministic contexts. We claim that "plain" and "necessitated" counterfactuals differ in meaning. To substantiate this claim, we propose a new semantic treatment of historical counterfactuals in the Branching Time framework. We supplement our semantics with supervaluationist postsemantics, thanks to which we can explain away the intuitions which seem to talk in favor of the identification of "would" with "would necessarily".
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  8.  13
    On a Conjecture by San Pedro.Leszek Wroński - 2014 - European Journal for Philosophy of Science 4 (3):361-368.
    In a recent paper in this Journal Iñaki San Pedro put forward a conjecture regarding the relationship between no-conspiracy and parameter independence in EPR scenarios; namely, that violation of the former implies violation of the latter. He also offered an argument supporting the conjecture. In this short note I present a method of constructing counterexamples to the conjecture and point to a mistake in the argument.
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  9.  19
    Branching Space-Times and Parallel Processing.Leszek Wroński - 2013 - In Hanne Andersen, Dennis Dieks, Wenceslao González, Thomas Uebel & Gregory Wheeler (eds.), New Challenges to Philosophy of Science. Springer Verlag. pp. 135--148.
    There is a remarkable similarity between some mathematical objects used in the Branching Space-Times framework and those appearing in computer science in the fields of event structures for concurrent processing and Chu spaces. This paper introduces the similarities and formulates a few open questions for further research, hoping that both BST theorists and computer scientists can benefit from the project.
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  10.  82
    Causes and (in)Determinism.Tomasz Placek, Jacek Wawer & Leszek Wroński - 2014 - Erkenntnis 79 (S3):339-341.
    Introduction to a special issue of Erkenntnis.
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  11.  13
    Dutch Books and Nonclassical Probability Spaces.Leszek Wroński & Michał Tomasz Godziszewski - 2017 - European Journal for Philosophy of Science 7 (2):267-284.
    We investigate how Dutch Book considerations can be conducted in the context of two classes of nonclassical probability spaces used in philosophy of physics. In particular we show that a recent proposal by B. Feintzeig to find so called “generalized probability spaces” which would not be susceptible to a Dutch Book and would not possess a classical extension is doomed to fail. Noting that the particular notion of a nonclassical probability space used by Feintzeig is not the most common employed (...)
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  12.  11
    Belief Update Methods and Rules—Some Comparisons.Leszek Wronski - 2016 - Ergo, an Open Access Journal of Philosophy 3.
    We tackle two open questions from Leitgeb and Pettigrew (2010b) regarding what the belief update framework described in that paper mandates as correct responses to two problems. One of them concerns credences in overlapping propositions and is known in the literature as the “simultaneous update problem”. The other is the well known “Judy Benjamin” problem concerning conditional credences. We argue that our results concerning the problems point to deficiencies of the framework. More generally, we observe that the method of minimizing (...)
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  13.  47
    Exhaustive Classication of Finite Classical Probability Spaces with Regard to the Notion of Causal Up-to-N-Closedness.Michal Marczyk & Leszek Wronski - unknown
    Extending the ideas from (Hofer-Szabó and Rédei [2006]), we introduce the notion of causal up-to-n-closedness of probability spaces. A probability space is said to be causally up-to-n-closed with respect to a relation of independence R_ind iff for any pair of correlated events belonging to R_ind the space provides a common cause or a common cause system of size at most n. We prove that a finite classical probability space is causally up-to-3-closed w.r.t. the relation of logical independence iff its probability (...)
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  14.  33
    Only Countable Common Cause Systems Exist.Michal Marczyk & Leszek Wronski - unknown
    In this paper we give a positive answer to a problem posed by G. Hofer-Szabo and M. Redei regarding the existence of infinite common cause systems. An example of a countably infinite CCS is presented, as well as the proof that no CCSs of greater cardinality exist.
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  15.  8
    Separate Common Causes and EPR Correlations---A No-Go Result.Tomasz Placek & Leszek Wroński - unknown
    One diagnosis of Bell's theorem is that its premise of Outcome Independence is unreasonably strong, as it postulates one common screener system that purports to explain all the correlations involved. This poses a challenge of constructing a model for quantum correlations that is local, non-conspiratorial, and has many separate screener systems rather than one common screener system. In particular, the assumptions of such models should not entail Bell's inequalities. We prove that the models described do not exist, and hence, the (...)
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  16.  13
    A New Notion of Causal Closedness.Leszek Wroński & Michał Marczyk - 2013 - Erkenntnis 79 (S3):1-26.
    In recent years part of the literature on probabilistic causality concerned notions stemming from Reichenbach’s idea of explaining correlations between not directly causally related events by referring to their common causes. A few related notions have been introduced, e.g. that of a “common cause system” (Hofer-Szabó and Rédei in Int J Theor Phys 43(7/8):1819–1826, 2004) and “causal (N-)closedness” of probability spaces (Gyenis and Rédei in Found Phys 34(9):1284–1303, 2004; Hofer-Szabó and Rédei in Found Phys 36(5):745–756, 2006). In this paper we (...)
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  17.  3
    The Common Cause Principle as a Special Case of the Principle of Sufficient Reason.Leszek Wronski - 2014 - In Marek Rosiak & Miroslaw Szatkowski (eds.), Substantiality and Causality. De Gruyter. pp. 151-162.
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  18.  2
    1 The Principle of the Common Cause: Its Shapes and Content.Leszek Wroński - 2014 - In Reichenbach’s Paradise Constructing the Realm of Probabilistic Common “Causes”. De Gruyter Open. pp. 1-29.
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  19.  1
    On Minkowskian Branching Structures.Leszek Wroński & Tomasz Placek - 2009 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 40 (3):251-258.
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  20.  1
    Contents.Leszek Wroński - 2014 - In Reichenbach’s Paradise Constructing the Realm of Probabilistic Common “Causes”. De Gruyter Open.
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  21. Acknowledgments / Introduction.Leszek Wroński - 2014 - In Reichenbach’s Paradise Constructing the Realm of Probabilistic Common “Causes”. De Gruyter Open.
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  22. Bibliography.Leszek Wroński - 2014 - In Reichenbach’s Paradise Constructing the Realm of Probabilistic Common “Causes”. De Gruyter Open. pp. 108-111.
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  23. Conclusion.Leszek Wroński - 2014 - In Reichenbach’s Paradise Constructing the Realm of Probabilistic Common “Causes”. De Gruyter Open. pp. 105-107.
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  24. 5 Causal Closedness.Leszek Wroński - 2014 - In Reichenbach’s Paradise Constructing the Realm of Probabilistic Common “Causes”. De Gruyter Open. pp. 70-95.
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  25. 6 Causal Completability.Leszek Wroński - 2014 - In Reichenbach’s Paradise Constructing the Realm of Probabilistic Common “Causes”. De Gruyter Open. pp. 96-104.
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  26. Index.Leszek Wroński - 2014 - In Reichenbach’s Paradise Constructing the Realm of Probabilistic Common “Causes”. De Gruyter Open. pp. 112-113.
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  27. List of Figures / List of Tables.Leszek Wroński - 2014 - In Reichenbach’s Paradise Constructing the Realm of Probabilistic Common “Causes”. De Gruyter Open.
  28. Probability. [REVIEW]Leszek Wroński - 2015 - Polish Journal of Philosophy 9 (2):87-89.
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  29.  17
    Reichenbach's Paradise.Leszek Wroński - forthcoming - De Gruyter Open.
    Since its introduction by Hans Reichenbach, many philosophers have claimed to refute the idea – known as the common cause principle – that any surprising correlation between any two factors that do not directly influence one another is due to some common cause. For example, falsity of the principle is frequently inferred from falsifiability of Bell’s inequalities. The author demonstrates, however, that the situation is not so straightforward. There is more than one version of the principle formulated with the use (...)
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  30. Reichenbach’s Paradise Constructing the Realm of Probabilistic Common “Causes”.Leszek Wroński - unknown
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  31. 2 Screening Offand Explanation: Formal Properties.Leszek Wroński - 2014 - In Reichenbach’s Paradise Constructing the Realm of Probabilistic Common “Causes”. De Gruyter Open. pp. 30-43.
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  32. 3 The Principle of the Common Cause and the Bell Inequalities.Leszek Wroński - 2014 - In Reichenbach’s Paradise Constructing the Realm of Probabilistic Common “Causes”. De Gruyter Open. pp. 44-62.
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  33. 4 The Principle of the Common Cause and the Causal Markov Condition.Leszek Wroński - 2014 - In Reichenbach’s Paradise Constructing the Realm of Probabilistic Common “Causes”. De Gruyter Open. pp. 63-69.
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