Combining Philosophers

Ideas for Luitzen E.J. Brouwer, Rom Harr and Eustachius a Sancto Paulo

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2 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 / E. Nonclassical Logics / 7. Paraconsistency

12452

Our dislike of contradiction in logic is a matter of psychology, not mathematics [Brouwer]