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All the ideas for '', 'Notes on John Wilkins' and 'Prescriptivism'

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7 ideas

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic

11211

If a sound conclusion comes from two errors that cancel out, the path of the argument must matter [Rumfitt]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

11210

Standardly 'and' and 'but' are held to have the same sense by having the same truth table [Rumfitt]

11212

The sense of a connective comes from primitively obvious rules of inference [Rumfitt]

9. Objects / D. Essence of Objects / 14. Knowledge of Essences

12694

Essence is the distinct thinkability of anything [Leibniz]

19. Language / F. Communication / 3. Denial

11214

We learn 'not' along with affirmation, by learning to either affirm or deny a sentence [Rumfitt]

22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / i. Prescriptivism

2854	Prescriptivism says 'ought' without commitment to act is insincere, or weakly used [Hooker,B]

23. Ethics / B. Contract Ethics / 2. Golden Rule

2856	Universal moral judgements imply the Golden Rule ('do as you would be done by') [Hooker,B]