Combining Texts

Ideas for 'On the Question of Absolute Undecidability', 'Language,Truth and Logic' and 'Axiomatic Theories of Truth'

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4 ideas

5. Theory of Logic / K. Features of Logics / 3. Soundness

16342

You cannot just say all of Peano arithmetic is true, as 'true' isn't part of the system [Halbach]

16341

Normally we only endorse a theory if we believe it to be sound [Halbach]

16344

Soundness must involve truth; the soundness of PA certainly needs it [Halbach]

5. Theory of Logic / K. Features of Logics / 5. Incompleteness

17894

We have no argument to show a statement is absolutely undecidable [Koellner]