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    Systematic non-intersubstitutability salva congruitate is... — Carmelics
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    Supports→The identity theory of truth faces an objection based on the non-congruence of canonical names of propositions and facts.

    Systematic non-intersubstitutability salva congruitate is a reliable indicator of categorial difference, as Davidson's work on logical form demonstrates.

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    1 reason for
    1 reason against

    Reasons For

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    Reason for
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    • 1.Davidson showed that adverbs and event quantifiers have distinct logical forms, revealing categorial differences invisible to surface grammar.
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    • 2.Systematic failures of substitution (e.g., 'slowly' for 'swiftly') reveal deep semantic structure reflecting genuine ontological categories.
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    • 3.If expressions are truly intersubstitutable salva congruitate across contexts, they express the same semantic content and belong to same category.
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    Reasons Against

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    Reason against
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    • 1.Non-substitutability can reflect pragmatic context, speaker intention, or stylistic norms rather than fundamental categorial boundaries.
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    • 2.Davidson's event analysis explains logical form without requiring non-substitutability as the *indicator* of categorial difference itself.
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    • 3.Many genuine category members are non-intersubstitutable (specific horses vs. horse-hood), so the criterion conflates distinct philosophical issues.
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    Connections

    2 topics

    Truth & Knowledge1 linkedPhilosophy of Language1 linked

    Related

    Davidson showed that adverbs and event quantifiers have distinct logical forms, ...Davidson's event analysis explains logical form without requiring non-substituta...If expressions are truly intersubstitutable salva congruitate across contexts, t...Many genuine category members are non-intersubstitutable (specific horses vs. ho...
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    Non-substitutability can reflect pragmatic context, speaker intention, or stylis...Systematic failures of substitution (e.g., 'slowly' for 'swiftly') reveal deep s...The identity theory of truth faces an objection based on the non-congruence of c...

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    2 (1 for, 1 against)
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