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    42
    Indices for evaluating temporal expressions must take the... — Carmelics
    Home/Modality & Possibility
    HistoryEditSee Inverse

    Indices for evaluating temporal expressions must take the form of a pair ⟨u, e⟩, where u is the time of utterance and e is the time of evaluation

    Modality & Possibility
    ?Rate how convincing each reason is below to see the overall strength.
    1 reason for
    2 reasons against

    Reasons For

    1 perspective
    Reason for
    ?
    • 1.The word 'now' must always refer back to the original time of utterance even when 'now' lies in the scope of other temporal operators such as F
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    • 2.Correctly evaluating sentences containing 'now' under temporal operators requires keeping track of both the time of utterance and the time of evaluation separately
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    Reasons Against

    2 perspectives
    Reason against 1 of 2
    ?
    • 1.Kaplan's own formal semantics for 'now' requires a character-content distinction, not a bare ⟨u,e⟩ index pair, making the pair insufficient.
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    • 2.A full treatment of context-dependent expressions requires at minimum a context parameter encoding agent, location, and world alongside time of utterance.
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    Reason against 2 of 2
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    • 1.Predelli's work on 'deferred utterance' shows that the time of utterance and the context of use can come apart, undermining the assumption that u straightforwardly fixes the utterance anchor.
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    • 2.Cases like recorded speech and written texts demonstrate that 'now' can successfully refer to a time neither of production nor of evaluation, requiring richer indexical machinery than a two-coordinate index.
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    Topics

    Modality & Possibility

    Related

    A full treatment of context-dependent expressions requires at minimum a context ...Cases like recorded speech and written texts demonstrate that 'now' can successf...Correctly evaluating sentences containing 'now' under temporal operators require...Kaplan's own formal semantics for 'now' requires a character-content distinction...
    +2 moreShow less
    Predelli's work on 'deferred utterance' shows that the time of utterance and the...The word 'now' must always refer back to the original time of utterance even whe...

    Similar

    Correctly evaluating sentences containing 'now' under temporal operato...82%Tenses are best modeled in terms of quantification over times rather t...74%A time index should be included in circumstances of evaluation74%The word 'now' must always refer back to the original time of utteranc...72%

    Source

    AI-extracted1/3 agreementValid
    SEP: logic-modal
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    To evaluate (3)\('\) correctly so that it matches what we mean by (3), we must make sure that ‘now’ always refers back to the original time of utterance when ‘now’ lies in the scope of other temporal operators such as F. Therefore we need to keep track of which time is the time of utterance \((u)\) as well as which time is the time of evaluation \((t)\). So our indices take the form of a pair \(\langle u, e\rangle\), where \(u\) is the time of utterance, and \(e\) is the time of evaluation. Then
    Extraction notes

    Validity: Extracted via Max plan + API grounding/validity checks

    Details

    Type
    claim
    Perspectives
    3 (1 for, 2 against)
    Edits
    1 edit