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> Godel showed us there are true things that can't be represented by a formal system. This is stretching things a bit. Specifically, it defines truth as 'does
by rocqua 9y ago
> Godel showed us there are true things that can't be represented by a formal system.
This is stretching things a bit. Specifically, it defines truth as 'does not lead to a contradiction in (some formal system that extends) Peano arithmetic'.
Then, as there are statements that are 'true' in this sense in such a system A but not probable by that system, there are 'unproveable truths'.
But is that satisfactory as a definition of truth? It used to be because we had hope for a complete and consistent formal system, which feel very truthy. When Godel proved that cannot exist, perhaps the conclusion is that formal systems aren't the 'base' for truth.