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    The Langton and Lewis account fails as an account of qual... — Carmelics
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    Supports→The Langton and Lewis account is most charitably interpreted as an account of duplication preservation or qualitative metaphysical necessitation interiority

    The Langton and Lewis account fails as an account of qualitative identity interior properties

    Modality & PossibilityPersonal Identity
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    2 reasons for
    1 reason against

    Reasons For

    2 perspectives
    Reason for 1 of 2
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    • 1.Langton and Lewis define intrinsic properties as those shared by all duplicates, but modal properties like 'being such that 2+2=4' are shared by all duplicates trivially.
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    • 2.A property shared by absolutely every possible object fails to discriminate qualitative character, making it unsuitable as an intrinsic property in Lewis's own sense.
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    • 3.Marshall and Parsons demonstrate that the duplication-based account collapses when applied to necessary truths, generating counterexamples that Lewis's framework cannot resolve.
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    Reason for 2 of 2
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    • 1.Yablo's independence criterion requires that intrinsic properties be ones whose instantiation is independent of what accompanies the object, but mathematical existence is not accompaniment-dependent.
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    • 2.If a property holds in every world regardless of an object's nature or relations, it carries no information about qualitative interior character in the sense required by personal identity theory.
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    Reasons Against

    1 perspective
    Reason against
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    • 1.The Langton and Lewis account classifies 'being such that there is a number' as intrinsic
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    • 2.Numbers necessarily exist
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    • 3.'Being such that there is a number' should not be classified as a qualitative identity interior property
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    Personal IdentityModality & Possibility

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    Related

    'Being such that there is a number' should not be classified as a qualitative id...A property shared by absolutely every possible object fails to discriminate qual...If a property holds in every world regardless of an object's nature or relations...Langton and Lewis define intrinsic properties as those shared by all duplicates,...
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    Like the Lewis 1986a account, the Langton and Lewis account faces similar interp...Marshall and Parsons demonstrate that the duplication-based account collapses wh...Numbers necessarily existThe Langton and Lewis account classifies 'being such that there is a number' as ...The Langton and Lewis account is most charitably interpreted as an account of du...Yablo's independence criterion requires that intrinsic properties be ones whose ...

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    Langton and Lewis put forward their account as only an analysis of qualitative intrinsic properties, rather than intrinsic properties in general. Their account, however, arguably fails as an account of qualitative identity interior properties since, given numbers necessarily exist, it classifies being such that there is a number as intrinsic. Therefore, like the Lewis 1986a account, the Langton and Lewis account is arguably most charitably interpreted as an account of duplication preservation, o

    Details

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    premise
    Perspectives
    3 (2 for, 1 against)
    Edits
    1 edit