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3 ideas
18777 | If the King of France is not bald, and not not-bald, this violates excluded middle [Linsky,B on Russell] |
16632 | We distinguish one thing from another by contradiction, because this is, and that is not [Duns Scotus] |
13094 | The haecceity is the featureless thing which gives ultimate individuality to a substance [Duns Scotus, by Cover/O'Leary-Hawthorne] |