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Ideas for 'Mathematical Methods in Philosophy', 'Lectures 1930-32 (student notes)' and 'talk'

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3 ideas

5. Theory of Logic / E. Structures of Logic / 1. Logical Form

18741

Logical formalization makes concepts precise, and also shows their interrelation [Horsten/Pettigrew]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / c. not

18723

We may correctly use 'not' without making the rule explicit [Wittgenstein]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / d. and

18718

Saying 'and' has meaning is just saying it works in a sentence [Wittgenstein]