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'fragments/reports', 'Saundaranandakavya' and 'On What There Is'
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6 ideas
5. Theory of Logic / B. Logical Consequence / 5. Modus Ponens
8078
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Modus ponens is one of five inference rules identified by the Stoics [Chrysippus, by Devlin]
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5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle
6023
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Every proposition is either true or false [Chrysippus, by Cicero]
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5. Theory of Logic / E. Structures of Logic / 4. Variables in Logic
1618
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We study bound variables not to know reality, but to know what reality language asserts [Quine]
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5. Theory of Logic / F. Referring in Logic / 1. Naming / f. Names eliminated
8455
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Canonical notation needs quantification, variables and predicates, but not names [Quine, by Orenstein]
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8456
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Quine extended Russell's defining away of definite descriptions, to also define away names [Quine, by Orenstein]
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5. Theory of Logic / F. Referring in Logic / 2. Descriptions / c. Theory of definite descriptions
1611
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Names can be converted to descriptions, and Russell showed how to eliminate those [Quine]
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