Combining Texts

Ideas for 'teaching', 'Thought and Reality' and 'On What There Is'

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6 ideas

5. Theory of Logic / D. Assumptions for Logic / 1. Bivalence

8173	Language can violate bivalence because of non-referring terms or ill-defined predicates [Dummett]

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

8179	The law of excluded middle is the logical reflection of the principle of bivalence [Dummett]

5. Theory of Logic / E. Structures of Logic / 4. Variables in Logic

1618	We study bound variables not to know reality, but to know what reality language asserts [Quine]

5. Theory of Logic / F. Referring in Logic / 1. Naming / f. Names eliminated

8455	Canonical notation needs quantification, variables and predicates, but not names [Quine, by Orenstein]

8456	Quine extended Russell's defining away of definite descriptions, to also define away names [Quine, by Orenstein]

5. Theory of Logic / F. Referring in Logic / 2. Descriptions / c. Theory of definite descriptions

1611	Names can be converted to descriptions, and Russell showed how to eliminate those [Quine]