Logical Squares for Classical Logic Sentences |
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Authors: | Urszula Wybraniec-Skardowska |
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Affiliation: | 1.Department of Philosophy,Cardinal Stefan Wyszyński University in Warsaw,Warsaw,Poland |
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Abstract: | In this paper, with reference to relationships of the traditional square of opposition, we establish all the relations of the square of opposition between complex sentences built from the 16 binary and four unary propositional connectives of the classical propositional calculus (CPC). We illustrate them by means of many squares of opposition and, corresponding to them—octagons, hexagons or other geometrical objects. |
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