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Constructing the Categorical Converter - 3 In addition to the rule of Conversion, propositions in the SP square are related to SnP Square by the rule of Obversion. The SnP Square is constructed and lines are drawn from A to E propositions and from I to O propositions (see the diagram at right).
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10 August 1996 For Educators Stephen Downes Guide to the Logical Fallacies Copyright © Stephen Downes, 1995-2001 stephen.downes@ualberta.ca |