Combining Texts

All the ideas for 'works', 'A Note on the entscheidungsproblem' and 'Frege on Knowing the Third Realm'

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3 ideas

5. Theory of Logic / A. Overview of Logic / 3. Value of Logic

13479

Given that thinking aims at truth, logic gives universal rules for how to do it [Burge]

5. Theory of Logic / D. Assumptions for Logic / 3. Contradiction

10121

Contradiction is not a sign of falsity, nor lack of contradiction a sign of truth [Pascal]

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]