Skip to content
Carmelics
TopicsThinkersChangesContributorsLoading account…

    Carmelics

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

    Navigate

    • Topics
    • Search
    • Recent Changes
    • Contribute
    • How It Works
    • Glossary
    • Thinkers
    • Contributors
    • About
    • Statistics
    • Terms
    • Privacy

    Database

    Statements
    —
    Perspectives
    —
    Topics
    —

    Press ? for keyboard shortcuts

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

    It is not the case that The truth of 'necessarily A' does not require A to be true in all possible worlds

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

    Reasons For

    2 perspectives
    Reason for 1 of 2
    ?
    • 1.Kripke's semantic framework establishes that 'necessarily A' is formally defined as A's truth across all worlds accessible from the actual world.
      ?

      Think about whether this reason is strong or weak

    • 2.Ordinary language uses of 'necessary' conflate alethic necessity with deontic or epistemic modalities, which require distinct logical treatment.
      ?

      Think about whether this reason is strong or weak

    • 3.Collapsing these modal distinctions, as the supporting argument does, undermines the very framework needed to give 'necessity' precise philosophical content.
      ?

      Think about whether this reason is strong or weak

    Reason for 2 of 2
    ?
    • 1.Lewis's modal realism entails that possible worlds are concrete, causally isolated entities, making 'necessarily A' a universal quantifier over all such worlds.
      ?

      Think about whether this reason is strong or weak

    • 2.If 'necessarily A' permits worlds where A is false, the logical inference from 'necessarily A' to A—axiom T—becomes invalid, destabilizing standard modal logic.
      ?

      Think about whether this reason is strong or weak

    Reasons Against

    1 perspective
    Reason against
    ?
    • 1.In ordinary speech, 'A is necessary' is used in contexts where the speaker knows there exist possible worlds where A is false
      ?

      Think about whether this reason is strong or weak

    • 2.The claim 'I must pay my bills' is intelligible and true even though there are possible worlds where the speaker fails to pay
      ?

      Think about whether this reason is strong or weak

    Next step

    Based on where you are in your exploration

    Strongest counterpoint
    Explore the most compelling reason on the other side.