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Constructing the Categorical Converter - 1
We place symbols on the Square to represent rules of inference as follows:
10 August 1996 
For Educators Stephen Downes Guide to the Logical Fallacies Copyright © Stephen Downes, 1995-2001 stephen.downes@ualberta.ca |
The first step in the construction of the
Categorical Converter is to take a
Square of Opposition and to angle
it slightly (this allows us to
construct the rest of the Converter
as a three-dimensional object).
- Contradiction
- Contrary
- Subcontrary
- Subalternation