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    Carmelics

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    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 Propositions expressed by sentences like 'Violet is a child' should have different truth-values with respect to different times, motivating the inclusion of a time index in semantic evaluation.

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

    Reasons For

    2 perspectives
    Reason for 1 of 2
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    • 1.Eternalist propositions are complete entities with times built in: 'Violet is a child at t' is timelessly true or false, requiring no index.
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    • 2.Frege and Russell treated propositions as abstract objects with determinate, unchanging truth-values, making temporal indexing a category error.
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    • 3.If a proposition's truth-value could change, the same proposition would violate the law of non-contradiction across times, undermining classical logic.
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    Reason for 2 of 2
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    • 1.B-theorists (e.g., Mellor in 'Real Time') hold that 'is a child' implicitly contains a relational temporal argument, so apparent change reflects propositional incompleteness, not index-sensitivity.
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    • 2.Once the hidden temporal relatum is made explicit, the sentence expresses distinct complete propositions at each time rather than one proposition with varying truth-values.
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    Reasons Against

    1 perspective
    Reason against
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    • 1.A-theorists hold that predicates like 'is a child' correspond to A-series properties that a thing can have at one time and lack at another time.
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    • 2.The proposition expressed by 'Violet is a child' predicates this A-series property of Violet.
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    • 3.If a property can be had at one time and lacked at another, then propositions predicating that property of an individual should vary in truth-value across times.
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