Combining Texts

Ideas for 'The Logic of Boundaryless Concepts', 'Intellectual Autobiography' and 'Laws of Nature'

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3 ideas

4. Formal Logic / A. Syllogistic Logic / 2. Syllogistic Logic

15879

The Square of Opposition has two contradictory pairs, one contrary pair, and one sub-contrary pair [Harré]

4. Formal Logic / A. Syllogistic Logic / 3. Term Logic

18904

'Predicable' terms come in charged pairs, with one the negation of the other [Sommers, by Engelbretsen]

18895

Logic which maps ordinary reasoning must be transparent, and free of variables [Sommers]