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Ideas for 'Mahaprajnaparamitashastra', 'fragments/reports' and 'Grundgesetze der Arithmetik 1 (Basic Laws)'

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3 ideas

5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle

1312	If everything is and isn't then everything is true, and a midway between true and false makes everything false [Aristotle on Heraclitus]

5. Theory of Logic / F. Referring in Logic / 2. Descriptions / b. Definite descriptions

13733

Frege considered definite descriptions to be genuine singular terms [Frege, by Fitting/Mendelsohn]

5. Theory of Logic / G. Quantification / 4. Substitutional Quantification

9874	Contradiction arises from Frege's substitutional account of second-order quantification [Dummett on Frege]