Combining Texts

All the ideas for 'The Emperor's New 'Knows'', 'The Logical Syntax of Language' and 'Reals by Abstraction'

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6 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]

6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / g. Real numbers

10632

The real numbers may be introduced by abstraction as ratios of quantities [Hale, by Hale/Wright]

13. Knowledge Criteria / C. External Justification / 6. Contextual Justification / b. Invariantism

12900

How could 'S knows he has hands' not have a fixed content? [Bach]

12901

If contextualism is right, knowledge sentences are baffling out of their context [Bach]

12902

Sceptics aren't changing the meaning of 'know', but claiming knowing is tougher than we think [Bach]