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Constructing the Categorical Converter - 3
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 |
In addition to the rule of Conversion,
propositions in the SP square
are related to SnP Square by
the rule of Obversion.