-
Naturalizm i geneza logikiFilozofia Nauki 20 (4). 2012.This paper examines the problem of genesis of logic in the light of naturalism as a philosophical view about the nature of knowledge and reality. The main difficulty of naturalism as far as applied to logic consists in reconciling genetic empiricism (all cognition starts with experience) and abstract nature of logic. Anti-naturalism (Platonism, for example) maintains than empiricism is not able to explain how logical theorems as a priori assertions are accumulated. To defend naturalism one shoul…Read more
-
Części i momenty (B. Smith (ed.), \"Parts and Moments. Studies in Logic and Formal Ontology\", Munchen-Wien 1982)Studia Filozoficzne 242 (1-2). 1986.
-
Powrót do teorii dwóch prawdFilozofia Nauki 1. 2006.The theory of double truth was proposed in the Middle Age by Latin Averroists as a solution of how the relation between faith (religion, theology) and reason (science) should be conceived. In general terms, according to this theory, there are two orders, one dictated by faith and second dictated by reason. Both are epistemologically different and cannot mutually remain in logical relations such as (in)consistency or entailment. This view was used in the Middle Ages for defending science against …Read more
-
39Kazimierz Twardowski is most commonly known as the teacher of great philosophers and the founder of the Lvov-Warsaw School. As a philosopher however, he is primarily remembered for his famous comparison of the contents and objects of various kinds of representations, a comparison that remains enshrined in European thought.In fact, he attained important results in many other branches of philosophy as well. For instance, in ontology, he laid the foundations for the modern theory of formal structur…Read more
-
60Meaningfulness, Meaninglessness and Language-HierarchiesPolish Journal of Philosophy 4 (2): 35-47. 2010.Roman Ingarden offered a strong criticism of the verifiability principle in his talk delivered at the 8th International Congress in Prague in 1934. Ingarden argued that this principle either violates itself or smuggles a hidden sense. In this paper I show that Ingarden-like arguments about smuggled (but this pejorative qualification is skipped) meaning apply not only to the criteria of sense, but also to other semantic assertions within language-hierarchies in Tarski’s sense.
-
25Against truth as coherenceLogic and Logical Philosophy 4 (n/a): 41-51. 1996.Traces of the coherence theory are to be found in rationalistic epistemological systems of Leibniz, Spinoza, Kant, Hegel and Fichte. However, the first fully advanced coherence theory was proposed by Bradley in XIX century. He was followed by Joachim, McTaggart, and particularly Blanshard and Ewing. The coherence theory later became popular among philosophers of the Vienna Circle, notably in Neurath and Hempel.2 Recently, Rescher tried to combine various proposals of coherentists into one fully …Read more
-
Torsten WILHOLT: Zahl und Wirklichkeit. Eine philosophische Untersuchung uber die Anwendbarkeit der Mathematik, mentis, Paderborn, 2004Grazer Philosophische Studien 70 (1): 274. 2006.
-
33The book under review consists of two parts closely related to its title: I Introduction to Deontic Logic, II Logic and Legal Systems. Each part is divided into chapters. Part I brings the following units: 1. The Language of Logic and the Possibility of Deontic Logic; 2. Paradoxes and Shortcomings of Logic; 3. Norm-propositions, Conditional Norms, and Defeasibility, and Part II the following: 4. Legal Systems and Legal Validity; 5. Legal Indeterminacy: Normative Gaps and Conflicts of Norms; 6...
-
Susan Haack on Twardowski's Refutation of the Relativity of TruthFilozofia Nauki 19 (4). 2011.This paper comments Susan Haack’s remarks about Twardowski’s criticism of relativism in the theory of truth. The author summarizes Twardowski’s arguments for truth-absolutism and tries to show that that their presentation by Haack is incomplete. The defense of Twardowski’s position in the paper uses ideas developed by Tarski and Kokoszyñska
-
31Metamathematics and philosophyBulletin of the Section of Logic 12 (4): 221-225. 1983.The relevance of metamathematical researches for philosophy of math- ematics is an indubitable matter. In the paper I shall speak about impli- cations of metamathematics for general philosophy, especially for classical epistemological problems. Let us start with a historical observation con- cerning Hilbert's programme, the rst research programme in metamathe- matics as a separate study of formal systems. This programme was strongly in uence by epistemological considerations. In fact, Hilbert wa…Read more
-
First-order logic:(philosophical) pro and contraIn Vincent F. Hendricks (ed.), First-Order Logic Revisited, Logos. pp. 369--398. 2004.
-
63An abstract approach to bivalenceLogic and Logical Philosophy 23 (1): 3-14. 2014.This paper outlines an approach to the principle of bivalence based on very general, but still elementary, semantic considerations. The principle of bivalence states that “every sentence is either true or false”. Clearly, some logics are bivalent while others are not. A more general formulation of uses the concept of designated and non-designated logical values and is captured by “every sentence is either designated or non-designated”. Yet this formulation seems trivial, because the concept of n…Read more
-
15The problem of philosophical assumptions and consequences of scienceStudia Philosophiae Christianae 47 (4): 117-134. 2011.This paper argues that science is not dependent on philosophical assumption and does not entail philosophical consequences. The concept of dependence and entailment is understood logically, that is, are defined via consequence operation. Speaking more colloquially, the derivation of scientific theorems does not use philosophical statements as premises and one cannot derive philosophical theses from scientific assertions. This does not mean that science and philosophy are completely separated. In…Read more
-
7Notes on referenceLogic and Logical Philosophy 6 (n/a): 209. 1998.This paper proposes a vocabulary for speaking on reference. Themain idea is that we should sharply distinguish reference and designation.The former is esentially a pragmatic relation between the userof a referential expression, whereas the latter is semantic in character. Thisdistinction enables us to distinguish several cases of referring, including situations in which reference is incorrect. Reference also has some modal properties
-
Władysław Witwicki jako filozofFilozofia Nauki 3. 1999.Władysław Witwicki was first of all a psychologist, but he graduated in philosophy from Lvov University, being one of the earliest pupils of Kazimierz Twardowski. He was a representative of the descriptivistic branch of the Lvov-Warsaw School. In the area of phsychology he put into practice the important postulate of his teacher, who persuaded his students to write original handbooks, giving Polish scholar contributions their due: it is how the work on Witwicki's Psychology began. In the area of…Read more
Areas of Interest
Metaphilosophy |
Logic and Philosophy of Logic |