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Linglib.Studies.Bhadra2024

Bhadra 2024: Verb roots encode outcomes #

[Bha24]

The reversative prefix un- and the restitutive prefix re- are result-state modifiers sensitive to the outcome set a verb root lexically encodes ([Bha24], §5). Every verb root carries a set of outcomes O — the states its object can be in after the action — and a contextual set of thresholds T of states it can start from.

The two affixes split along two independent axes:

One idealization: each VerbOutcomes fixes its outcome and threshold sets once per root, freezing the [verb + object] unit that Bhadra's Level-2 story varies with the object (✓rebreak a limb vs. #rebreak a sewer, her (73)).

Main definitions #

Main results #

References #

Outcome cardinality (eq. 62) #

The cardinality tier of an outcome set — empty < singleton < multi — the light invariant of what a root encodes along the outcome axis. Only the tier, not an exact count, is grammatically load-bearing, so this is a three-element linear order rather than ℕ∞. Single-consumer substrate carried here with its anchoring study.

The cardinality tier of an outcome set (eq. 62).

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      noncomputable def Verb.OutcomeCardinality.ofSet {State : Type u_1} (O : Set State) :

      The tier of a concrete outcome set: multi-membered iff Nontrivial, empty iff there is no outcome, singleton otherwise.

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        theorem Verb.OutcomeCardinality.ofSet_eq_multi {State : Type u_1} {O : Set State} (h : O.Nontrivial) :
        theorem Verb.OutcomeCardinality.ofSet_eq_singleton {State : Type u_1} {O : Set State} (hne : O.Nonempty) (hnt : ¬O.Nontrivial) :
        theorem Verb.OutcomeCardinality.ofSet_eq_empty {State : Type u_1} {O : Set State} (h : ¬O.Nonempty) :
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        theorem Verb.OutcomeCardinality.ofSet_singleton {State : Type u_1} (s : State) :
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        Event boundaries (eqs. 64–65) #

        res and pre read an object's lexically-relevant state at the right and left boundaries of an event's temporal trace τ. They yield states, not times. Single-consumer substrate carried here with its anchoring study.

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        abbrev ArgumentStructure.StateFunction (Entity : Type u_1) (State : Type u_2) (Time : Type u_3) :
        Type (max (max u_1 u_2) u_3)

        A state function tracks an object's state at each time point.

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          def ArgumentStructure.resState {Entity : Type u_1} {State : Type u_2} {Time : Type u_3} [LinearOrder Time] (k : StateFunction Entity State Time) (e : Event Time) (x : Entity) :
          State

          res(e)(x) (eq. 64): the object's state at the right boundary of e.

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            def ArgumentStructure.preState {Entity : Type u_1} {State : Type u_2} {Time : Type u_3} [LinearOrder Time] (k : StateFunction Entity State Time) (e : Event Time) (x : Entity) :
            State

            pre(e)(x) (eq. 65): the object's state at the left boundary of e.

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              structure ArgumentStructure.VerbOutcomes (Entity : Type u_4) (State : Type u_5) (Time : Type u_6) [LinearOrder Time] :
              Type (max (max u_4 u_5) u_6)

              A verb root carrying an outcome set, the carrier result-state modifiers act on (eqs. 56, 60): the base predicate P(e)(x) with the lexical outcome set O and the contextual threshold set T.

              • verb : EventRel Time Entity

                The base predicate P(e)(x) (⟨v,⟨e,t⟩⟩).

              • outcomes : Set State

                The lexically-encoded outcome set O (states at the right boundary).

              • thresholds : Set State

                The contextual threshold set T (states at the left boundary).

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                noncomputable def ArgumentStructure.VerbOutcomes.cardinality {Entity : Type u_1} {State : Type u_2} {Time : Type u_3} [LinearOrder Time] (vro : VerbOutcomes Entity State Time) :

                The cardinality tier of a root's outcome set.

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                  The compositional verb root (eqs. 53–60) #

                  A verb root lexically encodes its base predicate P (the ⟨v,⟨e,t⟩⟩ meaning the affixes modify), its outcome set O (states at the right boundary, eq. 56a), and its threshold set T (left boundary, eq. 56b) — the local VerbOutcomes above, with resState/preState the eq. 64–65 boundary operators and StateFunction the paper's state k : t ↦ l(x) (eq. 53). APPLIES (eq. 59) is folded into verb.

                  un- and re- as result-state modifiers (eqs. 66, 68) #

                  def Bhadra2024.unSem {Entity : Type u_1} {State : Type u_2} {Time : Type u_3} [LinearOrder Time] (k : ArgumentStructure.StateFunction Entity State Time) (vro : ArgumentStructure.VerbOutcomes Entity State Time) (e : Event Time) (x : Entity) :

                  Reversative un- (eq. 66). unSem k vro e x holds iff there is a prior base event e' whose result is the un-event's start state (res(e') = pre(e)), the outcome set is multi-membered (O.Nontrivial, |O| > 1), and the un-event undoes it (res(e) = pre(e')). The vacuous ∃Q. Q(e)(x) — which sits in the assertion of eq. 66, not its presupposition — is dropped.

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                    def Bhadra2024.reSem {Entity : Type u_1} {State : Type u_2} {Time : Type u_3} [LinearOrder Time] (k : ArgumentStructure.StateFunction Entity State Time) (vro : ArgumentStructure.VerbOutcomes Entity State Time) (e : Event Time) (x : Entity) :

                    Restitutive re- (eq. 68). reSem k vro e x holds iff there is a prior base event e' with the same result (res(e) = res(e'), eq. 68 i), the re-event starts from a valid threshold state (pre(e) ∈ T), and the base predicate holds of the re-event (P(e)(x)). The threshold clause is a rational reconstruction — not a transcription — of eq. 68 ii's negative existential (no threshold state may render the re-action undefined; the cyclic-re- condition, eq. 72). Unlike unSem, this places no cardinality demand on O.

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                      Cardinality blocks un- (eq. 67) #

                      theorem Bhadra2024.subsingleton_blocks_un {Entity : Type u_1} {State : Type u_2} {Time : Type u_3} [LinearOrder Time] (k : ArgumentStructure.StateFunction Entity State Time) (vro : ArgumentStructure.VerbOutcomes Entity State Time) (h : ¬vro.outcomes.Nontrivial) (e : Event Time) (x : Entity) :
                      ¬unSem k vro e x

                      The core asymmetry: a verb whose outcome set is not multi-membered cannot host un- ([Bha24], eq. 67). The multi-membered presupposition of unSem fails.

                      theorem Bhadra2024.singleton_blocks_un {Entity : Type u_1} {State : Type u_2} {Time : Type u_3} [LinearOrder Time] (k : ArgumentStructure.StateFunction Entity State Time) (vro : ArgumentStructure.VerbOutcomes Entity State Time) (s : State) (hs : vro.outcomes = {s}) (e : Event Time) (x : Entity) :
                      ¬unSem k vro e x

                      Singleton outcome sets (IE and COS verbs) block un-.

                      theorem Bhadra2024.empty_blocks_un {Entity : Type u_1} {State : Type u_2} {Time : Type u_3} [LinearOrder Time] (k : ArgumentStructure.StateFunction Entity State Time) (vro : ArgumentStructure.VerbOutcomes Entity State Time) (hs : vro.outcomes = ) (e : Event Time) (x : Entity) :
                      ¬unSem k vro e x

                      Empty outcome sets (no-change-specified verbs) block un-.

                      theorem Bhadra2024.un_requires_multi_cardinality {Entity : Type u_1} {State : Type u_2} {Time : Type u_3} [LinearOrder Time] (k : ArgumentStructure.StateFunction Entity State Time) (vro : ArgumentStructure.VerbOutcomes Entity State Time) (e : Event Time) (x : Entity) (h : unSem k vro e x) :

                      un-'s cardinality demand (eq. 67, |O| > 1) is exactly the substrate OutcomeCardinality.multi tier (eq. 62, empty < singleton < multi): hosting un- forces the verb root's outcome set into the top tier. Wires Bhadra's outcome cardinality to the OutcomeCardinality substrate.

                      The Levin-class → outcome-cardinality bridge (eq. 62) #

                      The single per-class datum: the cardinality of a verb root's lexical outcome set, valued in ℕ∞. PFC roots have open-ended outcome sets (eq. 60: O = {k | k = APPLIES(e)(x)}, unbounded), idealized as ; IE and COS roots have a single lexically-specified result (eqs. 61a–g); no-change roots have none (eq. 61h). Only 1 < · is load-bearing (it drives un-); the three tiers realize the eq. 62 hierarchy multi > singleton > empty.

                      Outcome-set cardinality of a Levin verb class ([Bha24], eq. 62).

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                        The eq. 62 hierarchy, witnessed on a representative of each tier: multi-membered (PFC) > singleton (IE, COS) > empty (no change).

                        un- prediction is derived from cardinality: PFC classes have 1 < outcomeCard, every other class does not.

                        Worked examples (eqs. 60–61, 66–71) #

                        fold: a PFC root (multi-membered outcomes), un- and re- both attach #

                        States of a parchment under folding (eq. 54: a multi-membered outcome set).

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                            fold (Levin bend class): a multi-membered outcome set.

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                              Positive: un- IS satisfiable for fold (eq. 66 worked example, "Veena unfolded the parchment").

                              Positive: re- IS satisfiable for fold — the multi-membered (PFC) tier's re- cell, completing the Fig. 5 distribution: re- attaches across the multi and singleton tiers (eq. 72), where un- takes the multi tier only. Reuses the root of her worked unfold derivation (74)–(75).

                              break: a COS root (singleton outcome), un- blocked, re- allowed #

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                                def Bhadra2024.instReprLimbState.repr :
                                LimbStateStd.Format
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                                  break (Levin break_ class): a single lexically-specified result (eq. 61a).

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                                    unbreak is blocked: the singleton outcome set fails eq. 67.

                                    Positive: re- IS satisfiable for break (rebreak a limb): result equivalence holds and the re-event starts from the intact threshold.

                                    hit: an IE root (singleton outcome), un- and re- both blocked #

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                                        hit (Levin hit class): impingement, a single surface-alteration result (eq. 61g).

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                                          Negative: re- is blocked for hit — IE verbs block re- as well as un- ((25), (48)): the impingement outcome never re-enters the pre-state (threshold) set, so the cyclic-re- condition (eq. 68 ii) fails.

                                          load vs shatter: the re- minimal pair (eqs. 69–71) #

                                          Both are singleton-outcome (so both block un-); they differ on re- purely through the threshold condition (eq. 68 ii). After loading, the truck can be loaded again (it re-enters a threshold); after shattering, the mirror cannot.

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                                              load (degree achievement, eq. 70): a single contextually-salient result; the object stays loadable.

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                                                Positive: re- IS satisfiable for load (eq. 69a "reloaded the truck").

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                                                    shatter (eq. 71): a single result that leaves the object outside every threshold — it cannot be shattered again.

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                                                      Negative: re- is blocked for shatter (eq. 69b "#reshattered the mirror"): the cyclic-re- threshold condition (eq. 68 ii) fails — the shattered mirror is never in the intact threshold the re-event needs.

                                                      End-to-end: Fragment entry → Levin class → prediction #

                                                      The Fragment verb's levinClass drives the outcome cardinality, which drives the un- prediction.

                                                      Bridges to the substrate #

                                                      The outcome-cardinality classification is finer than the change-of-state label ([Bha24]'s central move): bend is CoS per [Lev93] yet has a multi-membered (PFC) outcome set.

                                                      [Bha24] reclassifies bend from a flat change-of-state verb to a potential-for-change root: CoS per [Lev93]'s meaning components, but multi-membered (and hence un--compatible) by outcome cardinality.

                                                      The outcome-cardinality classification is orthogonal to event-template result states: bend and coil share the PFC profile but differ on whether their template carries a result state.

                                                      Affectedness bridge ([Bha24] §2.4.2, §6.1): the affectedness projection cannot separate PFC roots from IE roots — the PFC object profile (causally affected, no entailed change) and kick's object profile both land on Beavers's potential-for-change degree, whose exemplars include surface-contact hit/kick. Bhadra carves the IE class (kick is named in her (25)) out of exactly that cell (§2.4.2), and her §6.1 point is that the split needs outcome-set structure a bare latent-scale existential cannot see: outcome cardinality separates the two ( vs 1) where the affectedness degree does not.

                                                      Change-type bridge: result roots entail change and lack the restitutive again reading; property-concept roots are the reverse.