Documentation

Linglib.Phenomena.TenseAspect.Studies.OgiharaST2024

@cite{ogihara-steinert-threlkeld-2024} — Data #

@cite{ogihara-steinert-threlkeld-2024}

Theory-neutral empirical data on the veridicality asymmetry between temporal connectives before and after.

Key Empirical Generalizations #

  1. After is veridical: "He left after she arrived" entails "she arrived".
  2. Before is non-veridical: "He left before she arrived" is compatible with her not arriving (the "barely prevented" reading).
  3. Before is non-veridical even with perfective complements: "The bomb exploded before anyone defused it" does not entail anyone defused it.

Data Sources #

An empirical judgment about whether a temporal connective entails the truth of its complement clause.

  • sentence : String

    The example sentence

  • connective : String

    The temporal connective

  • complementEntailed : Bool

    Does the sentence entail that the complement event occurred?

  • gloss : String

    Brief gloss of the entailment pattern

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      "He left after she arrived" entails "she arrived".

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        "He left before she arrived" does NOT entail "she arrived". Compatible with: she did arrive (veridical reading), she didn't arrive (counterfactual reading, e.g. "before she could arrive"), or indeterminate (non-committal reading).

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          "The bomb exploded before anyone defused it" — the complement event (defusing) did NOT occur. This is the counterfactual reading of before (@cite{beaver-condoravdi-2003}, "barely prevented").

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            "She finished her coffee after he left" entails "he left".

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              "The Supreme Court decided the election before the votes were counted" — non-committal: compatible with votes eventually being counted or never counted (@cite{beaver-condoravdi-2003}, ex. 22).

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                "Mozart died before he finished the Requiem" — counterfactual: Mozart never finished the Requiem (@cite{beaver-condoravdi-2003}, ex. 24).

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                  A judgment about a logical property of a temporal connective: does it hold, fail, or hold only under conditions?

                  • property : String

                    Property name

                  • connective : String

                    Connective

                  • holds : Bool

                    Does the property hold?

                  • example_ : String

                    Example sentence(s)

                  • gloss : String

                    Brief explanation

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                      Before is antisymmetric: "Cleo was in America before David was" and "David was in America before Cleo was" cannot both be true (with non-overlapping intervals). (@cite{beaver-condoravdi-2003}, exx. 3-4)

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                        After is NOT antisymmetric: overlapping intervals allow both directions. (@cite{beaver-condoravdi-2003}, exx. 5-7, diagram 7)

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                          Before is transitive: if A before B and B before C, then A before C. (@cite{beaver-condoravdi-2003}, exx. 12-14)

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                            After is NOT transitive: overlapping intervals allow after(A,B) ∧ after(B,C) ∧ ¬after(A,C). (@cite{beaver-condoravdi-2003}, exx. 8-11)

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                              Before licenses NPIs; after does not. (@cite{beaver-condoravdi-2003}, exx. 15-18)

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                                "David won the race before he entered it" — pragmatically odd because winning temporally presupposes entering: there is no historical alternative where one wins before entering. (@cite{beaver-condoravdi-2003}, ex. 32)

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                                  "David entered the race after he won it" — same temporal impossibility viewed through after: entering after winning reverses the natural temporal order. (@cite{beaver-condoravdi-2003}, ex. 33)

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                                    A datum recording an empirical problem for B&C's branching-time analysis. These are cases where before is used with complement events that are in the past, which B&C's forward-branching alt(w,t) cannot handle.

                                    • sentence : String

                                      The example sentence

                                    • reading : String

                                      Which reading of before is involved?

                                    • problem : String

                                      Why B&C's analysis fails

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                                        "Shohei Ohtani was named the 2023 AL MVP before the 2023 MLB season ended." The complement event (season ending) is in the PAST relative to the naming event but also temporally precedes it. B&C's alt(w,t) at the naming time cannot branch to alternatives where the season doesn't end, because the season ending is already in the past. (O&@cite{ogihara-steinert-threlkeld-2024}, §5.1)

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                                          "It snowed a lot in 2020 before the pandemic hit." Both events are in the past. B&C's analysis requires alt(w,t) at the snow time to include alternatives where the pandemic doesn't hit, but the pandemic is also in the past. (O&@cite{ogihara-steinert-threlkeld-2024}, §5.1)

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                                            "Nostradamus predicted many things before they happened." The complement events (predictions coming true) are in the past relative to utterance time. B&C would need alternatives where the predicted events never happen, but these events are already settled. (O&@cite{ogihara-steinert-threlkeld-2024}, §5.1)

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                                              A datum recording asymmetries in the availability of non-committal readings, which B&C's Event Continuation Condition should but cannot fully predict.

                                              • sentence : String

                                                The example sentence

                                              • nonCommittalAvailable : Bool

                                                Is the non-committal reading available?

                                              • explanation : String

                                                Why the availability is as it is

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                                                  "Mary will leave the party before Bill gets drunk." Non-committal reading is available: maybe Bill gets drunk, maybe not. B&C's Event Continuation Condition is satisfied (Bill getting drunk is a normal continuation). (O&@cite{ogihara-steinert-threlkeld-2024}, §5.2)

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                                                    "Mary will leave the party before Quebec becomes an independent country." Non-committal reading is NOT available (sentence is odd): Quebec's independence is not a normal continuation of the party. B&C's Event Continuation Condition should block this, but the mechanism is unclear for before-clauses with pragmatically impossible complements. (O&@cite{ogihara-steinert-threlkeld-2024}, §5.2)

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                                                      The non-committal reading is sensitive to contextual plausibility: available when the complement is a normal continuation, unavailable when it is pragmatically impossible.

                                                      Cross-linguistic morphological evidence for the veridicality asymmetry.

                                                      • language : String

                                                        Language

                                                      • connective : String

                                                        The temporal connective (in the object language)

                                                      • gloss : String

                                                        English gloss

                                                      • observation : String

                                                        Key morphological observation

                                                      • supportsNonveridicality : Bool

                                                        Does this support the non-veridical analysis of before?

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                                                          Japanese mae ('before') requires non-past tense in its complement, even when describing past events. This independently supports the non-veridical analysis: the complement is presented as unrealized from the perspective of the main-clause event. (O&@cite{ogihara-steinert-threlkeld-2024}, §3)

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                                                            Japanese ato ('after') allows past tense in its complement, consistent with the veridical analysis: the complement event is presented as having occurred. (O&@cite{ogihara-steinert-threlkeld-2024}, §3)

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                                                              The Japanese tense asymmetry mirrors the veridicality asymmetry: mae (non-past complement) patterns with non-veridical before, ato (past complement) patterns with veridical after.

                                                              O&ST's theory derives after's veridicality from the double-existential quantificational structure: ∃e₁∃e₂[P(e₁) ∧ Q(e₂) ∧...] entails ∃e₂, Q(e₂).

                                                              This is not a stipulation in the Fragment — it follows from the semantics.

                                                              O&ST's theory derives before's non-veridicality from the universal quantification over the complement: ∃e₁[P(e₁) ∧ ∀e₂[Q(e₂) →...]] is vacuously true when Q has no witnesses.

                                                              Concretely: any P-event with an empty Q yields before(P, Q).

                                                              theorem Phenomena.TenseAspect.Studies.OgiharaST2024.scenario_after_punctual :
                                                              have leave := { runtime := { start := 1, finish := 1, valid := }, sort := Semantics.Events.EventSort.action }; have arrive := { runtime := { start := 0, finish := 0, valid := }, sort := Semantics.Events.EventSort.action }; Semantics.Tense.TemporalConnectives.OST.after (fun (x : Semantics.Events.Ev ) => x = leave) fun (x : Semantics.Events.Ev ) => x = arrive

                                                              Scenario: "He left₁ after she arrived₀" with punctual events.

                                                              • leaving event at time 1
                                                              • arriving event at time 0 O&ST predicts: after(leave, arrive) holds (τ(arrive) ≺ τ(leave)).
                                                              theorem Phenomena.TenseAspect.Studies.OgiharaST2024.scenario_before_punctual :
                                                              have leave := { runtime := { start := 1, finish := 1, valid := }, sort := Semantics.Events.EventSort.action }; have arrive := { runtime := { start := 3, finish := 3, valid := }, sort := Semantics.Events.EventSort.action }; Semantics.Tense.TemporalConnectives.OST.before (fun (x : Semantics.Events.Ev ) => x = leave) fun (x : Semantics.Events.Ev ) => x = arrive

                                                              Scenario: "He left₁ before she arrived₃" with punctual events.

                                                              • leaving event at time 1
                                                              • arriving event at time 3 O&ST predicts: before(leave, arrive) holds (τ(leave) ≺ τ(arrive)).

                                                              Scenario: "The bomb exploded₅ before anyone defused it" (nobody defused it). O&ST predicts: before(explode, defuse) holds vacuously (no defuse-events).

                                                              The punctual after-scenario projects correctly through eventDenotation: O&ST.after implies Anscombe.after on the projected interval sets.

                                                              The punctual before-scenario projects correctly through eventDenotation.

                                                              The logical properties of before and after noted by B&C follow directly from the quantificational structure. We verify each on concrete interval scenarios over ℤ, matching the B&C diagrams.

                                                              Before is antisymmetric in general: before(A,B) → ¬before(B,A).

                                                              From the ∀ in Anscombe's before: if ∃t ∈ A, ∀t' ∈ B, t < t', then for any s ∈ B we get t < s. But before(B,A) gives ∀ t ∈ A, s < t, so s < t and t < s — contradiction.

                                                              Note: no non-emptiness assumption needed.

                                                              Before is transitive in general: before(A,B) → before(B,C) → before(A,C).

                                                              From before(A,B): ∃t ∈ A, ∀t' ∈ B, t < t'. From before(B,C): ∃s ∈ B, ∀s' ∈ C, s < s'. Then t < s (from the first, since s ∈ B), and for any u ∈ C, s < u (from the second). So t < u by transitivity of <. Witness: t ∈ A.

                                                              Note: no non-emptiness assumption needed — s ∈ timeTrace B is provided by the second hypothesis.

                                                              The Japanese Fragment entry for mae agrees with the cross-linguistic datum: both record that mae supports the non-veridicality analysis.

                                                              The Japanese Fragment entry for ato agrees with the cross-linguistic datum: ato is veridical and does not support non-veridicality.