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    Therefore, the identity of propositions cannot be grounde... — Carmelics
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    Challenges→Hyperintensional distinctions between necessarily equivalent propositions are impossible.

    Therefore, the identity of propositions cannot be grounded solely in necessary equivalence without collapsing the semantics of intentional contexts.

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    1 reason for
    1 reason against

    Reasons For

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    Reason for
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    • 1.Necessarily equivalent propositions can differ in cognitive significance, as Frege's Morning Star/Evening Star example demonstrates.
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    • 2.Intentional contexts are transparent to substitution salva veritate only when propositions share identical content, not merely necessity.
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    • 3.Grounding identity in necessity alone conflates metaphysical equivalence with semantic identity, obscuring how minds individuate thoughts.
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    Reasons Against

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    Reason against
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    • 1.If necessary equivalence fails to ground identity, some principled criterion must replace it—yet no uncontroversial alternative exists.
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    • 2.Intentional contexts may be opaque due to representational differences, not because identity requires something beyond necessary equivalence.
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    • 3.The collapse worry assumes semantics must preserve all epistemic or cognitive distinctions, but identity conditions needn't track these.
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    Modality & Possibility1 linkedPhilosophy of Language1 linked

    Related

    Grounding identity in necessity alone conflates metaphysical equivalence with se...Hyperintensional distinctions between necessarily equivalent propositions are im...If necessary equivalence fails to ground identity, some principled criterion mus...Intentional contexts are transparent to substitution salva veritate only when pr...
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    Intentional contexts may be opaque due to representational differences, not beca...Necessarily equivalent propositions can differ in cognitive significance, as Fre...The collapse worry assumes semantics must preserve all epistemic or cognitive di...

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    2 (1 for, 1 against)
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