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Studies.AssmannEtAl2023

Assmann, Büring, Jordanoska & Prüller 2023: morphosyntactic focus marking #

In languages that mark focus morphosyntactically, each focal marking marks one constituent, possibly a phrase or the whole clause, which may then realize any focus within it, and Blocking chooses the most specific marking available. A language's focus syncretisms are thereby fixed by which constituents have a marking of their own: Gùrùntùm's VP marking serves verb, object and VP focus, a disjunctive syncretism, and its clausal marking only clausal focus, an exocentric one. Tangale, in the paper's footnotes, follows Hausa in the progressive and Gùrùntùm in the perfective, which agrees with Hartmann and Zimmermann's reflex analysis.

In English each branching node is a domain of focal marking: default weights mark the node, and prosodic reversal its default-weak daughter. Blocking within such a domain is Büring's weak restriction, and the restrictions of the domains accumulate by his Propagation, which predicts the readings of Kim ATE the yogurt.

Main definitions #

TODO #

Two rows focus constituents below the skeleton and are not checked: the Gùrùntùm intra-VP phrase of footnote 4, whose own marking blocks the VP marking, and the Hausa part-of-subject focus of (15).

References #

The clause skeleton #

Subject and VP within the clause; verb and object within VP.

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    def AssmannEtAl2023.instReprNode.repr :
    Node → ℕ → Std.Format
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      Constituent containment, generated by the parent relation.

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      theorem AssmannEtAl2023.isChain_Ici (f : Node) :
      IsChain (fun (x1 x2 : Node) => x1 ≤ x2) (Set.Ici f)

      The constituents containing a focus form a chain, since each node has one parent.

      @[instance_reducible]
      instance AssmannEtAl2023.instDecidableIsMinNode (n : Node) :
      Decidable (IsMin n)
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      Usable markings #

      def AssmannEtAl2023.Usable {C : Type u_1} [PartialOrder C] (inv : List C) (m f : C) :

      A marking of constituent m is usable for focus f when m is minimal among the constituents of the inventory that contain f.

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        theorem AssmannEtAl2023.usable_iff {C : Type u_1} [PartialOrder C] {inv : List C} {m f : C} :
        Usable inv m f ↔ m ∈ inv ∧ f ≤ m ∧ ∀ c ∈ inv, f ≤ c → c ≤ m → m = c
        @[instance_reducible]
        instance AssmannEtAl2023.instDecidableUsableOfDecidableEqOfDecidableLE {C : Type u_1} [PartialOrder C] {inv : List C} {m f : C} [DecidableEq C] [DecidableLE C] :
        Decidable (Usable inv m f)
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        theorem AssmannEtAl2023.Usable.of_le {C : Type u_1} [PartialOrder C] {inv : List C} {m f g : C} (h : Usable inv m f) (hfg : f ≤ g) (hgm : g ≤ m) :
        Usable inv m g

        A marking usable for a focus is usable for every focus between it and the marked constituent, so the foci a marking is syncretic for form a continuous stretch of the tree.

        theorem AssmannEtAl2023.Usable.unique {C : Type u_1} [PartialOrder C] {inv : List C} {m m' f : C} (hchain : IsChain (fun (x1 x2 : C) => x1 ≤ x2) (Set.Ici f)) (h : Usable inv m f) (h' : Usable inv m' f) :
        m = m'

        When the constituents containing a focus form a chain, its usable marking is unique.

        Markings #

        def AssmannEtAl2023.marking (inv : List Node) (f : Node) :
        Option Node

        The marking an inventory uses for a focus is its usable constituent.

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          theorem AssmannEtAl2023.marking_eq_some {inv : List Node} {m f : Node} (h : Usable inv m f) :
          marking inv f = some m

          The usable marking is the one marking finds, since on a tree there is only one.

          Gùrùntùm marks the subject by a before it, the VP by a between verb and object, and the clause by clause-final á.

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            Buli marks the clause by (à)lē after the subject, the VP by ká before the object, and the verb by kámā after the VP.

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              In Hausa the relative form marks the subject, and the absolute form, the default, marks the clause.

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                Wolof marks the subject by a, the object by la with fronting, the VP by da(fa), and the clause by na or ngi.

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                  Aymara marks the subject and the object by -wa on them, and the clause by -wa on the verb.

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                    Awing has no marking but that of the unmarked clause.

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                      theorem AssmannEtAl2023.marking_guruntum (f : Node) :
                      marking guruntum f = some (match f with | Node.sbj => Node.sbj | Node.s => Node.s | x => Node.vp)

                      Verb, object and VP focus share the VP marking; the clausal marking serves clausal focus only.

                      theorem AssmannEtAl2023.marking_buli (f : Node) :
                      marking buli f = some (match f with | Node.s => Node.s | Node.sbj => Node.s | Node.vp => Node.vp | Node.obj => Node.vp | Node.v => Node.v)

                      Subject focus is syncretic with clausal focus, object focus with VP focus.

                      theorem AssmannEtAl2023.marking_hausa (f : Node) :
                      marking hausa f = some (match f with | Node.sbj => Node.sbj | x => Node.s)

                      Only subject focus has to be marked; the default serves every other focus.

                      theorem AssmannEtAl2023.marking_wolof (f : Node) :
                      marking wolof f = some (match f with | Node.sbj => Node.sbj | Node.obj => Node.obj | Node.s => Node.s | x => Node.vp)

                      Verb and VP focus are syncretic; subject, object and clause each have their marking.

                      theorem AssmannEtAl2023.marking_aymara (f : Node) :
                      marking aymara f = some (match f with | Node.sbj => Node.sbj | Node.obj => Node.obj | x => Node.s)

                      Verb, VP and clausal focus are syncretic.

                      Anything can be the focus of the unmarked clause.

                      Exocentric and disjunctive foci #

                      def AssmannEtAl2023.Exocentric (inv : List Node) (m : Node) :

                      An exocentric marking realizes no focus below the constituent it marks.

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                        @[instance_reducible]
                        instance AssmannEtAl2023.instDecidableExocentric (inv : List Node) (m : Node) :
                        Decidable (Exocentric inv m)
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                        def AssmannEtAl2023.Disjunctive (inv : List Node) (m : Node) :

                        A disjunctive marking realizes foci on two disjoint constituents.

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                          instance AssmannEtAl2023.instDecidableDisjunctive (inv : List Node) (m : Node) :
                          Decidable (Disjunctive inv m)
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                          Gùrùntùm's clausal marking is exocentric and its VP marking disjunctive.

                          theorem AssmannEtAl2023.not_downward_syncretism :
                          ¬∀ m ∈ guruntum, ∃ (f : Node), IsMin f ∧ Usable guruntum m f

                          Downward Syncretism, that every marking of a phrase is syncretic with focus on some word, fails on Gùrùntùm.

                          theorem AssmannEtAl2023.usable_vp_of_v {inv : List Node} {m : Node} (h : Usable inv m Node.v) (hm : Node.vp ≤ m) :

                          A marking that realizes narrow verb focus and reaches the VP realizes VP focus too, so the disjunctive syncretism predicts the broad focus.

                          Tangale and the reflex analysis #

                          Tangale follows Hausa in the progressive, where only subject focus must be marked, and Gùrùntùm in the perfective, where verb, VP and object focus share a marking.

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                            A configuration has an overt reflex on the reflex analysis exactly when its marking here is not the default clausal one.

                            English #

                            The daughters of a branching node, the default-weak one first.

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                              The node that the weights of an English domain with mother n and default-weak daughter w mark as focal. Default weights, which impose a weak restriction, mark the mother, and reversal, which imposes a strong one, marks the daughter.

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                                def AssmannEtAl2023.localFocus {α : Type u_1} {β : Type u_2} [DecidableEq α] [DecidableEq β] (n w w' : Node) (a : α) (b : β) (t : α × β) :
                                Option Node

                                The constituent of a domain with mother n and daughters w and w' that a target focuses, relative to the daughters' literal meanings a and b, is the daughter that alone varies, or the mother when both do.

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                                • AssmannEtAl2023.localFocus n w w' a b t = if t.1 = a then if t.2 = b then none else some w' else if t.2 = b then some w else some n
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                                  theorem AssmannEtAl2023.notMem_excluded_iff {α : Type u_1} {β : Type u_2} [DecidableEq α] [DecidableEq β] {n w w' : Node} (h : n.daughters = some (w, w')) (a : α) (b : β) (t : α × β) (ρ : Focus.Restriction) :
                                  t ∉ Focus.excluded Prod.mk a b Edge.left ρ ↔ (localFocus n w w' a b t).elim (ρ = Focus.Restriction.weak) (Usable [n, w] (englishMarking n w ρ))

                                  In an English domain, whose inventory is the node and its default-weak daughter, the restriction of each metrical pattern excludes exactly the targets whose focus Blocking takes from the marking the pattern provides. The literal meaning, which focuses nothing, survives only default weights.

                                  Individuals.

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                                    def AssmannEtAl2023.instReprEnt.repr :
                                    Ent → ℕ → Std.Format
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                                      Transitive-verb meanings.

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                                        def AssmannEtAl2023.instReprRel.repr :
                                        Rel → ℕ → Std.Format
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                                          Object meanings.

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                                            def AssmannEtAl2023.instReprObj.repr :
                                            Obj → ℕ → Std.Format
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                                              @[instance_reducible]
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                                              Kim ate the yogurt with restriction ρ on the subject and ρ' on the verb.

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                                                Under default weights in the clause and reversal in the VP, Kim ATE the yogurt allows the propositions in which anyone stands in a relation other than eating to the yogurt.

                                                The focal target of a focus on the constituents F replaces each word within them by its alternative.

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                                                  The paper's examples #

                                                  def AssmannEtAl2023.focus? :
                                                  String → Option (List Node)

                                                  The constituents a reading focuses.

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                                                    def AssmannEtAl2023.inventory? (r : Datum) :
                                                    Option (List Node)

                                                    The inventory of a row's language.

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                                                      The constituent a row's marking marks as focal.

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                                                        The nodes an English row's prosody marks in the clause and in the VP.

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                                                          theorem AssmannEtAl2023.rows_marking (r : Datum) :
                                                          r ∈ Examples.all → ∀ inv ∈ inventory? r, ∀ m ∈ marked? r, ∀ x ∈ r.readings, ∀ f ∈ Node.parse? x.1, x.2 = Judgment.acceptable ∧ marking inv f = some m

                                                          Every reading of a row is realized by the marking the row shows, which is the marking the inventory predicts for that focus.

                                                          With the clause marked by default weights and the verb by reversal, a reading of the English row is acceptable exactly when its focal target survives the restrictions of Kim ATE the yogurt.