Combining Texts

All the ideas for 'Vagueness', 'The Logical Syntax of Language' and 'The Nature and Communication of Substance'

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7 ideas

5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence
13342 Carnap defined consequence by contradiction, but this is unintuitive and changes with substitution [Tarski on Carnap]
5. Theory of Logic / C. Ontology of Logic / 4. Logic by Convention
13251 Each person is free to build their own logic, just by specifying a syntax [Carnap]
5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
21597 Logical connectives have the highest precision, yet are infected by the vagueness of true and false [Russell, by Williamson]
7. Existence / D. Theories of Reality / 10. Vagueness / d. Vagueness as linguistic
9051 Since natural language is not precise it cannot be in the province of logic [Russell, by Keefe/Smith]
9054 Vagueness is only a characteristic of representations, such as language [Russell]
17. Mind and Body / A. Mind-Body Dualism / 5. Parallelism
2596 Maybe mind and body are parallel, like two good clocks [Leibniz]
28. God / B. Proving God / 3. Proofs of Evidence / b. Teleological Proof
2595 If the universe is a perfect agreement of uncommunicating substances, there must be a common source [Leibniz]