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Inverse View
It is not the case that Logical characterizations like SO∃ are themselves artifacts of specific metatheoretical choices about syntax, semantics, and expressive power.
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Reasons For
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Reason for
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1.
SO∃'s logical properties (incompleteness, capturing NP on finite structures) hold across multiple formal frameworks and metatheories.
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2.
If characterizations were mere artifacts of choices, isomorphic logical systems would yield different core results—but they don't.
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3.
The claim conflates epistemological dependence on frameworks with metaphysical dependence, risking collapsing all logic into pure convention.
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Reasons Against
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Reason against
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1.
Different formal systems (first-order, second-order, infinitary logic) capture different classes of properties depending on their syntactic rules.
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2.
What counts as 'definable' or 'expressible' varies with semantic choices (Tarskian models vs. alternative model classes).
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3.
SO∃ boundaries reflect prior commitments about quantifier scope and variable domains, not mind-independent logical facts.
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