Ideas from 'What Price Bivalence?' by Willard Quine [1981], by Theme Structure

[found in 'Theories and Things' by Quine,Willard [Harvard 1981,0-674-87926-0]].

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5. Theory of Logic / D. Assumptions for Logic / 1. Bivalence
Bivalence applies not just to sentences, but that general terms are true or false of each object
7. Existence / D. Theories of Reality / 9. Vagueness / d. Vagueness as linguistic
Terms learned by ostension tend to be vague, because that must be quick and unrefined