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    If substitutional validity under unrestricted term-substi... — Carmelics
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    Challenges→The substitutional criterion for validity is not the only criterion by which arguments/consequences can be valid.

    If substitutional validity under unrestricted term-substitution extensionally coincides with all valid inferences, positing additional criteria adds no explanatory power.

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    Reasons For

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    Reason for
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    • 1.Occam's Razor favors simpler explanations: if one criterion perfectly captures validity, additional criteria are unmotivated multiplications of entities.
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    • 2.Explanatory power requires that criteria provide distinct predictive or analytical value; extensional coincidence demonstrates absence of such value.
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    • 3.Additional criteria risk inconsistency or ad-hoc stipulation, creating theoretical burden without empirical or logical justification.
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    Reasons Against

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    • 1.Extensional equivalence at one level of analysis may mask explanatory differences at another: e.g., two accounts may produce identical results yet explain validity differently.
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    • 2.Additional criteria can have value by clarifying logical mechanisms, providing proof-theoretic elegance, or enabling computational efficiency, independent of extension.
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    • 3.Unrestricted substitution may be theoretically unmotivated; alternative criteria justified by independent principles (e.g., semantic grounds) deserve consideration regardless of coincidence.
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    Truth & Knowledge1 linkedPhilosophy of Language1 linked

    Related

    Additional criteria can have value by clarifying logical mechanisms, providing p...Additional criteria risk inconsistency or ad-hoc stipulation, creating theoretic...Explanatory power requires that criteria provide distinct predictive or analytic...Extensional equivalence at one level of analysis may mask explanatory difference...
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    Occam's Razor favors simpler explanations: if one criterion perfectly captures v...The substitutional criterion for validity is not the only criterion by which arg...Unrestricted substitution may be theoretically unmotivated; alternative criteria...

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    2 (1 for, 1 against)
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