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Studies.GartnerGyuris2017

Gärtner and Gyuris (2017): On Delimiting the Space of Bias Profiles for Polar Interrogatives #

This file formalizes [GG17]'s space of bias profiles. Following [Sud13], a polar interrogative clause type is biased evidentially (by compelling contextual evidence for p, against p, or neither) and epistemically (by the speaker's expectation that p, that not p, or neither), and separately for each of the three polar questions it can express, the positive question and the negative questions with inside and outside negation ([Lad81]). A bias profile chooses a nonempty set of the three values for each of the six cells, so there are 7⁶ = 117649 profiles (card_profile). The paper's delimiting principles are predicates on profiles, and the sizes of the spaces they leave are theorems: the principles that constrain cells separately count as products over cells (card_cellwise), those relating a positive question to its negative counterparts count as sums over the positive question's value (card_perDim, card_byReading), giving 46656 for Convexity, 2744 for Narrow Epistemic Choice, 512 for Static Complementarity with Convexity, 729 and 4096 for the two versions of Polarity Match, 63504 for PPQ ≠ NPQ, and 33856 and 56536 for distributive and collective Quantitative Markedness. Avoid Disagreement entails Convexity and excludes Narrow Epistemic Choice (not_avoidDisagreement_of_narrowEpistemic), the paper's reason to confine Polarity Match to the evidential dimension. Appendix A's five total profiles from [Sud13] and [Gyu17] are checked against every principle (sample_staticComplementarity), and the infelicity judgments of examples (1), (2), (8), and (9) follow from the profiles (rows_felicity).

Implementation notes #

The paper's three questions are readings, Option Polarity: PPQ is none, IN-NPQ the inner reading of a negative interrogative, double-checking ¬p (some .negative), and ON-NPQ the outer reading, double-checking p (some .positive); the six cells and the seven choices are enumerated types, so that every decision the kernel makes ranges over a literal list. The Hungarian e-interrogative cannot express an inside-negation question, so it is a partial profile kept apart from the five total ones; the paper's Czech and Romero comparisons belong to the later papers' studies.

References #

A bias choice: one of the seven nonempty sets of states of evidence or expectation, for p (+), against p (−), or neither (%).

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    The dimension a bias is drawn from.

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      The six cells of a profile: a reading of a polar question in a bias dimension.

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        A bias profile: a choice for each cell.

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          theorem GartnerGyuris2017.card_profile :
          Fintype.card Profile = 117649

          Counting principles #

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          A principle that constrains each cell on its own.

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            theorem GartnerGyuris2017.card_cellwise (A : Cell → Choice → Prop) [(c : Cell) → DecidablePred (A c)] :
            Fintype.card { p : Profile // Cellwise A p } = ∏ c : Cell, Fintype.card { x : Choice // A c x }

            A cellwise principle leaves the product over cells of the choices it allows there.

            A profile by dimension.

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              def GartnerGyuris2017.readingEquiv {X : Type u_1} (R : X → X → Prop) :
              { g : Option Polarity → X // R (g none) (g (some Polarity.negative)) ∧ R (g none) (g (some Polarity.positive)) } ≃ (x : X) × { y : X // R x y } × { y : X // R x y }

              A principle relating the positive question's value to each negative question's value factors through the positive question's value.

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                theorem GartnerGyuris2017.card_reading {X : Type u_1} [Fintype X] [DecidableEq X] (R : X → X → Prop) [DecidableRel R] :
                Fintype.card { g : Option Polarity → X // R (g none) (g (some Polarity.negative)) ∧ R (g none) (g (some Polarity.positive)) } = ∑ x : X, Fintype.card { y : X // R x y } * Fintype.card { y : X // R x y }

                Profiles as functions from dimensions to reading triples.

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                  theorem GartnerGyuris2017.card_perDim (Q : (Option Polarity → Choice) → Prop) [DecidablePred Q] :
                  Fintype.card { p : Profile // ∀ (d : Dimension), Q (byDim p d) } = Fintype.card { g : Option Polarity → Choice // Q g } ^ 2

                  A principle imposed within each dimension counts as the square of the per-dimension count.

                  Profiles as functions from readings to pairs of choices.

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                    theorem GartnerGyuris2017.card_byReading (R : Choice × Choice → Choice × Choice → Prop) [DecidableRel R] :
                    Fintype.card { p : Profile // R (pair p none) (pair p (some Polarity.negative)) ∧ R (pair p none) (pair p (some Polarity.positive)) } = ∑ x : Choice × Choice, Fintype.card { y : Choice × Choice // R x y } * Fintype.card { y : Choice × Choice // R x y }

                    A principle relating each negative question's pair of choices to the positive question's.

                    The delimiting principles (section 2) #

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                    Section 2.1, No Uniformity: not every cell makes the same choice.

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                      def GartnerGyuris2017.unireadingEquiv :
                      Choice ≃ { p : Profile // ∃ (x : Choice), ∀ (c : Cell), p c = x }

                      The uniform profiles are the choices.

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                        theorem GartnerGyuris2017.card_noUniformity :
                        Fintype.card { p : Profile // NoUniformity p } = 117642
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                        Section 2.2, PPQ ≠ NPQ: in each dimension, negation changes the bias.

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                          theorem GartnerGyuris2017.card_ppqNeqNpq :
                          Fintype.card { p : Profile // PPQNeqNPQ p } = 63504
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                          Section 2.3.1, distributive Quantitative Markedness (11a): in each dimension the positive question has at least as many options as each negative question.

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                            The number of bias options a reading has across both dimensions.

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                              Section 2.3.1, collective Quantitative Markedness (11b): across both dimensions the positive question has at least as many options as each negative question.

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                                Section 2.3.2, generalized Qualitative Markedness: the neutral value belongs to the positive question's cells and to no negative question's cell.

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                                  Section 2.4, Avoid Disagreement: no negative value for a positive question, no positive value for a negative one.

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                                    Section 2.4, Don't Rule Out Agreement: every positive-question cell admits the positive value and every negative-question cell the negative one.

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                                      Section 2.5: a choice is convex when it does not skip the neutral value between the positive and the negative one, that is, when it is not {+, −}.

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                                        Section 2.5, Convexity: every cell is convex.

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                                          theorem GartnerGyuris2017.card_convexity :
                                          Fintype.card { p : Profile // Convexity p } = 46656
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                                          Section 2.6: the epistemic options the sample exhibits, {+} and {+, −, %}.

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                                            Section 2.6, Narrow Epistemic Choice: every epistemic cell is {+} or {+, −, %}.

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                                              theorem GartnerGyuris2017.card_narrowEpistemic :
                                              Fintype.card { p : Profile // NarrowEpistemic p } = 2744
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                                              Section 2.7, Static Complementarity: epistemic cells take the narrow options and evidential cells the remaining ones.

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                                                Relations among the principles (section 3.1.2) #

                                                Avoid Disagreement entails Convexity: a cell without one of the poles cannot be {+, −}.

                                                Narrow Epistemic Choice gives every negative question the positive epistemic value, which Avoid Disagreement forbids; Polarity Match can only be meant evidentially.

                                                Appendix A: the sample #

                                                def GartnerGyuris2017.mk (ppqEv ppqEp inEv inEp onEv onEp : Choice) :

                                                A profile from its six cells, in the order positive, inside-negation, outside-negation question, each evidential then epistemic.

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                                                  [1] English V1-interrogative ([Sud13]).

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                                                    [2] Japanese ∅-interrogative ([Sud13]).

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                                                      [3] Japanese no-interrogative ([Sud13]).

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                                                        [4] Japanese desho-interrogative ([Sud13]).

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                                                          [5] Hungarian fall-rise interrogative ([Gyu17]).

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                                                            The Hungarian fall-rise interrogative shares the English profile.

                                                            No Uniformity and collective Quantitative Markedness hold throughout the sample.

                                                            Distributive Quantitative Markedness fails for the Japanese ∅- and no-interrogatives, whose outside-negation questions have more evidential options than their positive questions.

                                                            PPQ ≠ NPQ fails within the sample for the Japanese ∅- and desho-interrogatives, whose inside-negation question shares a choice with the positive question, and the paper's own counterexample is the Hungarian e-interrogative, whose positive and outside-negation questions share the evidential anti-bias {%}.

                                                            Avoid Disagreement fails throughout the sample, while Don't Rule Out Agreement holds only for the desho-interrogative.

                                                            Convexity holds throughout the sample; Narrow Epistemic Choice fails only for the desho-interrogative, whose negative questions carry {−}.

                                                            Static Complementarity fails exactly for the Japanese no- and desho-interrogatives, the six violations of (26).

                                                            Examples (1), (2), (8), (9): infelicity from the profiles #

                                                            The clause types whose examples the paper judges.

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                                                              An example: the clause type, the question it expresses, and the bias value the scenario fixes in one dimension, with the judgment.

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                                                                def GartnerGyuris2017.instDecidableEqRow.decEq (x✝ x✝¹ : Row) :
                                                                Decidable (x✝ = x✝¹)
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                                                                    The judged examples (1), (2a), (2b), (8), (9a), (9b).

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                                                                      An example is felicitous exactly when the scenario's bias value is among the clause type's options for that cell: the judgments follow from the profiles.