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    Carmelics

    A reasoning platform. Break down any belief into clear reasons, explore both sides, and weigh the evidence honestly.

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    LoyalLoyalJusticeJustice
    Made withinDC&Austin
    Statements
    321,452
    Perspectives
    108,905
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    42
    Home/Original/inverse
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    Inverse View

    It is not the case that If validity depends on strict modal connection between antecedent and consequent, then truth of premises is insufficient for soundness without necessity of those truths.

    ?Set your confidence on the premises below to see your aggregate.

    Reasons For

    1 perspective
    Reason for
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    • 1.Soundness is standardly defined as valid argument plus true premises in the actual world; modal necessity is a separate, stronger requirement.
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    • 2.Conflating necessity of truth with validity conflates metaphysical modality with logical form; an argument can be valid without metaphysical modality.
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    • 3.Many sound arguments have contingent premises (e.g., empirical inductions); requiring necessary premises would eliminate most real-world reasoning.
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    Reasons Against

    1 perspective
    Reason against
    ?
    • 1.Soundness requires not just true premises but that conclusion must follow necessarily; contingent truths permit logically invalid inferences.
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    • 2.A valid argument with contingently true premises could be false in other possible worlds, failing to demonstrate genuine logical necessity.
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    • 3.Modal validity ensures the argument structure itself guarantees truth preservation across all possible scenarios, not just the actual world.
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