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    Therefore no natural number n can witness the formula Prf... — Carmelics
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    Supports→Non-standard models of F must contain 'infinite' non-natural numbers beyond all natural numbers.

    Therefore no natural number n can witness the formula Prf_F(x, ⌈G_F⌉) in any non-standard model.

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    Because Prf_F(x, y) strongly represents the proof relation, F can prove ¬Prf_F(n...Non-standard models of F must contain 'infinite' non-natural numbers beyond all ...The witnessing entities in non-standard models must therefore be entities other ...

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    ¬G_F is equivalent to ∃x Prf_F(x, ⌈G_F⌉), so models satisfying ¬G_F must contain...

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    SEP: goedel-incompleteness
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    It is illuminating to reflect on the first incompleteness theorem also from the model theoretic perspective—though the theorem itself does not in any way require this. Namely, it is possible to conclude that any theory \(F\) satisfying the conditions of the theorem must possess, in addition to the intended interpretation or “standard model” (in the case of arithmetical theories, the structure of natural numbers), non-intended interpretations or “non-standard models”—that no such theory can rule

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