Stanislaw Lesniewski's Logical Systems: Protothetic, Ontology, Mereology


"Lesniewski defined ontology, one of his three foundational systems, as 'a certain kind of modernized 'traditional logic' [On the foundations of mathematics (FM), p. 176]. In this respect it is worth bearing in mind that in the 1937-38 academic year Lesniewski taught a course called "Traditional 'formal logic' and traditional 'set theory' on the ground of ontology"; cf. Srzednicki and Stachniak, S. Lesniewski's Systems. Protothetic, 1988, p. 180. On this see Kotarbinski Gnosiology. The scientific approach to the theory of knowledge, 1966, pp. 253-54 [the Polish original was published in 1929], which Lesniewski praised in [FM]: see in particular pp. 373 ff. Kotarbinski noted that Lesniewski "calls his system 'ontology' in harmony with certain terms used earlier (as in..



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A system of logic for bicategorial ontology.Czeslaw Lejewski - 1974 - Journal of Philosophical Logic 3 (3):265 - 283.
Editor's Foreword.Craig Calhoun - 1999 - Sociological Theory 17 (1):1-2.
Editor's Foreword.[author unknown] - 1991 - Apeiron 24 (4):vii-vii.

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