Metamorphosis of Cosmology and (Self)Conception of Logic

Karel Šebela


This paper is a reflection on the transformations of self-concept of logic depending on the changing world view and cosmology. For Plato, it is the organization of stray paths inside, the patterns are perfect planetary orbits - a microcosm should be organised according to the pattern of macrocosm . A certain peak of this conception is Aristotle, for whom the law of excluded middle is the basic principle of all , valid not only for the perfect sublunar world , but it is also a starting point for exploring the underlunar  world. Transformations of self-conception of logic in modern times can be understood on the basis of the fact that cosmos is from Descartes understood primarily as res extensa and for exploring such a space " fit " much more mathematics. On the other hand, there is very influential Kant's Copernican turn, which we could summarize metaphorically so that the planets are governed by the tracks of our thinking. After challenging of the Kantian idea of the unity and universality of rationality is in the 20th century legitimized the growing plurality of logical systems.


Philosophy of Logic; Plato; Aristotle; Descartes; Kant; Logical Laws

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Published by the Department of Philosophy, Faculty of Arts, Masaryk University, Brno, Czech Republic.
ISSN: 1212-9097