... UJ, Kraków 1997, 30-40. [74] The paradox of Grelling and Nelson presented as a veridical obse... more ... UJ, Kraków 1997, 30-40. [74] The paradox of Grelling and Nelson presented as a veridical observation concerning naming, in The Lvov-Warsaw School and Contemporary Philosophy (ed. by K. Kijania-Placek), Kluwer 1998, 183-190. [75] Is Antipsychologism Still Tenable? ...
For decades Ryszard Wójcicki has been a highly influential scholar in the community of logicians ... more For decades Ryszard Wójcicki has been a highly influential scholar in the community of logicians and philosophers. Our aim is to outline and comment on some essential issues on logic, methodology of science and semantics as seen from the perspective of distinguished contributions of Wójcicki to these areas of philosophical investigations.
The authors concentrate on the analysis of the concept of permission. After a general account of ... more The authors concentrate on the analysis of the concept of permission. After a general account of differing concepts of permission both with regard to different legal theories and to different legal ideologies, they argue in favour of a "radical" imperativism which leaves no place for permissive norms. Thus, in contrast with the logic of normative language (LNL) purported by Alchourr6n and Bulygin, the authors figure out a system of deontic logicsupplemented by devices of the possible world semanticsaccording to which a normative system (N) is conceived as a set of logical consequences of a certain finite set of basic obligations and no room is left either for the concept of weak permission or for the concept of strong permission. Finally the authors raise some criticisms concerning the view maintained by Alchourron and Bulygin on strong permission.* 1.
ABSTRACT We compare Jan Łukasiewicz's and Karl Popper's views on induction. The E... more ABSTRACT We compare Jan Łukasiewicz's and Karl Popper's views on induction. The English translation of the two Łukasiewicz's papers is included in the Appendix.
In this article the author first described the developments which brought to focus the importance... more In this article the author first described the developments which brought to focus the importance of consistency proofs for mathematics, and which led Hilbert to promote the science of metamathemat-ics. Further comments and remarks concern the (partly analogous) beginnings of the work on the decision problem, Gödel’s theorems and related matters, and general metamathematics. An appendix summarizes a text by
The brief article of 1910 which is translated here is, as the prefatory note explains, significan... more The brief article of 1910 which is translated here is, as the prefatory note explains, significant for understanding both the way in which Łukasiewicz came to many-valued logic and the influences under which he stood at the time.
SYNOPSIS The book is an attempt to introduce the readers to the Polish school of scientific (or a... more SYNOPSIS The book is an attempt to introduce the readers to the Polish school of scientific (or analytic) philosophy which came to be known as the Lvov-Warsaw School. Although the Polish circle of mathematical logic is well known in the world and everyone is acquainted with the achievements of its most important scholars (like Łukasiewicz or Tarski), the philosophical ideas on which that circle has grown are still quite unknown. For this reason, this collection centers on purely philosophical matters, offering a series of essays on some ...
... UJ, Kraków 1997, 30-40. [74] The paradox of Grelling and Nelson presented as a veridical obse... more ... UJ, Kraków 1997, 30-40. [74] The paradox of Grelling and Nelson presented as a veridical observation concerning naming, in The Lvov-Warsaw School and Contemporary Philosophy (ed. by K. Kijania-Placek), Kluwer 1998, 183-190. [75] Is Antipsychologism Still Tenable? ...
For decades Ryszard Wójcicki has been a highly influential scholar in the community of logicians ... more For decades Ryszard Wójcicki has been a highly influential scholar in the community of logicians and philosophers. Our aim is to outline and comment on some essential issues on logic, methodology of science and semantics as seen from the perspective of distinguished contributions of Wójcicki to these areas of philosophical investigations.
The authors concentrate on the analysis of the concept of permission. After a general account of ... more The authors concentrate on the analysis of the concept of permission. After a general account of differing concepts of permission both with regard to different legal theories and to different legal ideologies, they argue in favour of a "radical" imperativism which leaves no place for permissive norms. Thus, in contrast with the logic of normative language (LNL) purported by Alchourr6n and Bulygin, the authors figure out a system of deontic logicsupplemented by devices of the possible world semanticsaccording to which a normative system (N) is conceived as a set of logical consequences of a certain finite set of basic obligations and no room is left either for the concept of weak permission or for the concept of strong permission. Finally the authors raise some criticisms concerning the view maintained by Alchourron and Bulygin on strong permission.* 1.
ABSTRACT We compare Jan Łukasiewicz's and Karl Popper's views on induction. The E... more ABSTRACT We compare Jan Łukasiewicz's and Karl Popper's views on induction. The English translation of the two Łukasiewicz's papers is included in the Appendix.
In this article the author first described the developments which brought to focus the importance... more In this article the author first described the developments which brought to focus the importance of consistency proofs for mathematics, and which led Hilbert to promote the science of metamathemat-ics. Further comments and remarks concern the (partly analogous) beginnings of the work on the decision problem, Gödel’s theorems and related matters, and general metamathematics. An appendix summarizes a text by
The brief article of 1910 which is translated here is, as the prefatory note explains, significan... more The brief article of 1910 which is translated here is, as the prefatory note explains, significant for understanding both the way in which Łukasiewicz came to many-valued logic and the influences under which he stood at the time.
SYNOPSIS The book is an attempt to introduce the readers to the Polish school of scientific (or a... more SYNOPSIS The book is an attempt to introduce the readers to the Polish school of scientific (or analytic) philosophy which came to be known as the Lvov-Warsaw School. Although the Polish circle of mathematical logic is well known in the world and everyone is acquainted with the achievements of its most important scholars (like Łukasiewicz or Tarski), the philosophical ideas on which that circle has grown are still quite unknown. For this reason, this collection centers on purely philosophical matters, offering a series of essays on some ...
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