Search results for 'ukasiewicz, Jan' (try it on Scholar)

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  1. Hans-Christoph Schmidt Am Busch & Kai Wehmeier (2007). On the Relations Between Heinrich Scholz and Jan Łukasiewicz. History and Philosophy of Logic 28 (1):67-81.score: 144.0
    The aim of the present study is (1) to show, on the basis of a number of unpublished documents, how Heinrich Scholz supported his Warsaw colleague Jan ?ukasiewicz, the Polish logician, during World War II, and (2) to discuss the efforts he made in order to enable Jan ?ukasiewicz and his wife Regina to move from Warsaw to Münster under life-threatening circumstances. In the first section, we explain how Scholz provided financial help to ?ukasiewicz, and we also adduce evidence of (...)
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  2. Dariusz Łukasiewicz (2011). On Jan Łukasiewicz's Many-Valued Logic and His Criticism of Determinism. Philosophia Scientiae 15:7-20.score: 126.0
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  3. Jan Woleński (1988). Jan Łukasiewicz o indukcji, logice wielowartościowej i filozofii. Studia Filozoficzne 270 (5).score: 126.0
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  4. Richard Robinson (1958). Jan Łukasiewicz: Aristotle's Syllogistic From the Standpoint of Modern Formal Logic. Second Edition Enlarged. Pp. Xvi+222. Oxford: Clarendon Press, 1957. Cloth, 305. Net. [REVIEW] The Classical Review 8 (3-4):282-.score: 120.0
  5. Richard Robinson (1953). Jan Łukasiewicz: Aristotle's Syllogistic From the Standpoint of Modern Formal Logic. Pp. Xii+142. Oxford: Clarendon Press, 1951. Cloth, 15s. Net. [REVIEW] The Classical Review 3 (02):118-119.score: 120.0
  6. Hans-Christoph Schmidt Am Busch & Kai F. Wehmeier (2007). On the Relations Between Heinrich Scholz and Jan Łukasiewicz. History and Philosophy of Logic 28 (1):67-81.score: 120.0
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  7. Michel Bastit (2011). Jan Łukasiewicz contre le dictum de omni et de nullo. Philosophia Scientiae 15:55-68.score: 120.0
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  8. Marcin Tkaczyk (2011). On Axiomatization of Łukasiewicz's Four-Valued Modal Logic. Logic and Logical Philosophy 20 (3):215-232.score: 66.0
    Formal aspects of various ways of description of Jan Łukasiewicz’s four-valued modal logic £ are discussed. The original Łukasiewicz’s description by means of the accepted and rejected theorems, together with the four-valued matrix, is presented. Then the improved E.J. Lemmon’s description based upon three specific axioms, together with the relational semantics, is presented as well. It is proved that Lemmon’s axiomatic is not independent: one axiom is derivable on the base of the remanent two. Several axiomatizations, based on three, two (...)
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  9. Jan Woleński & Joseph Agassi (2011). Łukasiewicz and Popper on Induction. History and Philosophy of Logic 31 (4):381-388.score: 60.0
    We compare Jan ?ukasiewicz's and Karl Popper's views on induction. The English translation of the two ?ukasiewicz's papers is included in the Appendix.
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  10. Jan Łukasiewicz, Jan Woleński & Peter Simons (1987). On the Principle of the Excluded Middle. History and Philosophy of Logic 8 (1):67-69.score: 36.0
    The brief article of 1910 which is translated here is, as the prefatory note explains, significant for understanding both the way in which ?ukasiewicz came to many-valued logic and the influences under which he stood at the time.
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  11. Karolina Rożko (2014). Znaczenie Pojęcia Odrzucania We Współczesnej Logice. Diametros 41:115-126.score: 36.0
    The main aim of this article is to show how the notion of refutation has been changing in logic for the last few years. The idea of refutation was known to Aristotle, but the formal concept was introduced by Jan Łukasiewicz. Afterwards this notion was investigated by the Polish group of logicians headed by Jerzy Słupecki. Several interesting articles about refutation have appeared in the last years. In this article, I present in outline the history of the notion of refutation (...)
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  12. Jan Łukasiewicz (1957/1987). Aristotle's Syllogistic From the Standpoint of Modern Formal Logic. Garland Pub..score: 30.0
  13. Jan Łukasiewicz (1963/1964). Elements of Mathematical Logic. New York, Macmillan.score: 30.0
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  14. Jan Łukasiewicz (1938). Kartezjusz. Kwartalnik Filozoficzny 15 (2):123-128.score: 30.0
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  15. Jan Łukasiewicz (1988). O logice trójwartościowej. Studia Filozoficzne 270 (5).score: 30.0
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  16. Jan Łukasiewicz (1988). O metodę w filozofii. Studia Filozoficzne 270 (5).score: 30.0
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  17. Jan Łukasiewicz (1988). O nauce i filozofii. Studia Filozoficzne 270 (5).score: 30.0
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  18. Jan Łukasiewicz (1988). O pojęciu możliwości. Studia Filozoficzne 270 (5).score: 30.0
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  19. Jan Łukasiewicz (1988). O prawdopodobieństwie wniosków indukcyjnych. Studia Filozoficzne 270 (5).score: 30.0
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  20. Jan Łukasiewicz (1988). O rozumowaniu w naukach przyrodniczych. Studia Filozoficzne 270 (5).score: 30.0
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  21. Jan Łukasiewicz (1988). O zasadzie wyłączonego środka. Studia Filozoficzne 270 (5).score: 30.0
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  22. Jan Łukasiewicz (1970). Selected Works. Amsterdam,North-Holland Pub. Co..score: 30.0
     
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  23. Jan Łukasiewicz (1988). Wykład pożegnalny. Studia Filozoficzne 270 (5).score: 30.0
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  24. Peter Simons, Wittgenstein on Surprise in Mathematics.score: 24.0
    Compulsion and Surprise Two phenomena conspire to convince people that the physical world exists independently of them. One is its recalcitrance, or insusceptibility to control. It resists and constrains our actions. Much as we might wish to do so, we cannot lift heavy boulders, walk through walls, jump rivers, breathe under water, or fly (unaided) over mountains. The other feature, which is connected to the first, is the world’s propensity to surprise us. The sights and sound, pressures and pains of (...)
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  25. Paweł Garbacz (2000). W stronę Łukasiewicza. Filozofia Nauki 1.score: 24.0
    The paper contains an attempt at formulating the project of logic comprised in Jan Łukasiewicz's article „On determinism” and a construction of a logic which would realise this project. Such a logic consists of three consequence-operations build upon a four-element algebra. The values of the algebra have been defined by means of the following set of sentences: true and true today, true but not true today, false but not false today and false and false today. It turns out that only (...)
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  26. Ryszard Kleszcz (2012). Logika, wszechmoc, Bóg. Filo-Sofija 12 (19).score: 24.0
    Traditional theism (in Christianity, Judaism and Islam) understands God as possessing certain attributes including omnipotence. God is omnipotent in the sense that God possesses unlimited (maximal) power. For some classical philosophers and theologians (PetrusDamiani, René Descartes) God’s omnipotence requires his being able to do absolutely anything, including the logically impossible. But in Thomas Aquinas’ opinion, to do what is logically impossible is not an act of power but is self-contradictory action. For Aquinas, a logically impossible action is not an action. (...)
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  27. Józef Andrzej Stuchliński (1994). Pragmatyczno-logiczna zasada sprzeczności. W obronie Arystotelesa. Filozofia Nauki 1.score: 24.0
    Jan Łukasiewicz distinguished three various formulations of the law of contradiction in Aristotle's considerations concerning axiomatic foundations of philosophia prima in the book Γ of Methaphysics. Łukasiewicz referred to these formulations as „ontological”, „logical”, and „psychological”, respectively. The author focuses his attention on the last of them, namely to the so called psychological approach. He finds this approach to be an inadequate interpretation of Aristotle's views and tries to show that the most appropriate interpretation is pragmatic-logical.
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  28. Allard Tamminga (1994). Logics of Rejection: Two Systems of Natural Deduction. Logique Et Analyse 146:169-208.score: 24.0
    This paper presents two systems of natural deduction for the rejection of non-tautologies of classical propositional logic. The first system is sound and complete with respect to the body of all non-tautologies, the second system is sound and complete with respect to the body of all contradictions. The second system is a subsystem of the first. Starting with Jan Łukasiewicz's work, we describe the historical development of theories of rejection for classical propositional logic. Subsequently, we present the two systems of (...)
     
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  29. Józef Życiński (2006). Ontologia Platona a ewolucja kosmiczna. Roczniki Filozoficzne 54 (2):335-348.score: 24.0
    mathematical formulae are our “mother tongue”, thanks to which we are able to develop a creative dialogue with our physical environment. The application of the language of mathematics gives us access to valuable information about events which occurred billions years ago and so allows us to reconstruct the history of the universe. This amazing property of nature inspires a non-trivial philosophical question: Why are there the mathematically described universal laws of physics at all, when nature could have been only an (...)
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  30. Jan Zygmunt (1991). Mojżesz Presburger: Life and Work. History and Philosophy of Logic 12 (2):211-223.score: 12.0
    The life and work of Moj?esz Presburger (1904?1943?) are summarised in this article. Although his production in logic was small, it had considerable impact, both his own researches and his editions of lecture notes of Adjukiewicz and ?ukasiewicz. In addition, the surviving records of his student time at Warsaw University provide information on a little-studied topic.
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  31. Matthias Baaz, Petr Hájek, David Švejda & Jan Krajíček (1998). Embedding Logics Into Product Logic. Studia Logica 61 (1):35-47.score: 12.0
    We construct a faithful interpretation of ukasiewicz's logic in product logic (both propositional and predicate). Using known facts it follows that the product predicate logic is not recursively axiomatizable.We prove a completeness theorem for product logic extended by a unary connective of Baaz [1]. We show that Gödel's logic is a sublogic of this extended product logic.
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  32. Jan Woleński (2004). The Reception of Frege in Poland. History and Philosophy of Logic 25 (1):37-51.score: 12.0
    This paper examines how the work of Frege was known and received in Poland in the period 1910?1935 (with one exception concerning the later work of Suszko). The main thesis is that Frege's reception in Poland was perhaps faster and deeper than in other countries, except England, due to works of Russell and Jourdain. The works of ?ukasiewicz, Le?niewski and Cze?owski are described.
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