Combining Texts

All the ideas for 'Letter to Mersenne', 'A Note on the entscheidungsproblem' and 'Boole calculus and the Concept script'

expand these ideas     |    start again     |     specify just one area for these texts

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3 ideas

5. Theory of Logic / K. Features of Logics / 7. Decidability

18758

Validity is provable, but invalidity isn't, because the model is infinite [Church, by McGee]

16. Persons / F. Free Will / 3. Constraints on the will

3789	The more reasons that compel me, the freer I am [Descartes]

18. Thought / A. Modes of Thought / 6. Judgement / a. Nature of Judgement

18265

We don't judge by combining subject and concept; we get a concept by splitting up a judgement [Frege]