How logical and pragmatic inferences determine acceptability judgements FDSL 12.5, Nova Gorica, 7.12.2017 Mojmír Dočekal Intro 1/79 N-words vs. NPIs • many languages distinguish 1) syntactically negative dependentent expressions: n-words 2) semantically negative dependent expressions: N(egative) P(olarity) I(tems) (1) a. Nimeni n-person nu not a has venit. come ‘Nobody came.’ b. *Vreun NPI student student nu not a has venit. come ‘*Any student didn’t come.’ [Ro] 2/79 (2) a. Dhen not idhe saw kanenan NPI-person o the Janis. John ‘John didn’t see anybody’ b. Dhen not idhe saw KANENAN n-person o the Janis. John ‘John didn’t see anybody at all.’ [Gr] • agreed criterion (recently Giannakidou and Zeijlstra (2017)): (3) X qualifies as an n-word iff: a. X can be used with structures with sentential negation or other X with meaning equivalent to one ¬ b. X provides a negative fragment answer. 3/79 Outline joint work with Jakub Dotlačil • slides: http://bit.ly/2AYE6Yl 1) NPIs vs. n-words: theory • n-words • NPIs: types • Czech 2) Experimental evidence • NR • Fragment answers • Likelihood 4/79 NPIs vs. n-words: theory 5/79 Sorting the data • Germanic negative quantifiers ∈ n-words: (4) a. John didn’t see nobody. [En] ¬∃x[Person (x) ∧ ¬See (John, x)] b. John nikoho neviděl. [Cz] ¬∃x[Person (x) ∧ See (John, x)] • NPIs = n-words: (5) a. Whom did you talk to? b. *Anybody. 6/79 n-words: 1) non-negative indefinites (predicate at type 〈e, t〉) plus roofing requirement (Ladusaw (1992), Giannakidou (1997) a.o.) 2) n-words as agreement markers ↔ locality, licensed in syntax (Zeijlstra (2004), Zeijlstra (2008)) • n-words (unlike indefinites or NPIs) need local negation (Giannakidou and Zeijlstra (2017)): (6) a. Dhen Not prodhosa betrayed.1sg mistika secrets [pu that eksethesan exposed.3pl [kanenan/*KANENAN]] anybody/n-body ‘I didn’t revela secrets that exposed anybody.’ 7/79 • n-words in Slavic languages: locality is very strict (Progovac (1993)), unlike in Spanish, Italian, Greek (7) a. *Petr Petr neřekl, neg.said že that nikdo n-body přišel. came ‘Petr didn’t say that anybody came.’ b. *Petr Petr nechce, neg.wants aby C.subj tu here nikdo n-body byl. were ‘Petr doesn’t want anybody were here.’ 8/79 NPIs • any – Negative Polarity Item (NPI) (8) *Peter visited anyone. (9) Petr didn’t visit anyone. a. ¬∃x[Person (x) ∧ Visit (Peter, x)] 9/79 • NPI licensing expressions share the property of reversing the direction of entailment in their argument • negation reverses entailment: p q (p ∧ q) → (p ∨ q) ¬(p ∨ q) → ¬(p ∧ q) 1 1 1 1 0 1 1 1 1 0 1 1 0 0 1 1 10/79 • natural language example: (10) red wine → wine a. John likes red wine. → John likes wine. b. John doesn’t like red wine. → John doesn’t like wine. c. John doesn’t like wine. → John doesn’t like red wine. • general term: Downward Entailing (DE) (11) Fauconnier-Ladusaw’s Licensing Condition: An NPI is only grammatical if it is in the scope of an α such that α is DE. 11/79 • upward monotonic quantifier: subsets → supersets • downward monotonic quantifier: supersets → subsets (12) a. det A: upward entailing iff for any B, C (B ⊆ C) Det A B ⇒ Det A C b. det A: downward entailing iff for any B, C (B ⊆ C) Det A C ⇒ Det A B c. if not upward or downward monotonic → non-monotonic 12/79 (13) Upward/Downward entailing and Non-monotonic determiners: a. some: Some toys are blue ⇒ Some toys are colored b. few: Few toys are colored ⇒ Few toys are blue c. exactly n: Exactly three toys are blue ↔ Exactly three toys are colored 13/79 • monotonicity properties of a position in a sentence are computed compositionally: (14) a. [↓ At most three detectives arrested ↓[fewer than four ↑[criminals]]] b. ⇒[↓ At most three detectives arrested ↓[fewer than four ↑[humans]]] 14/79 Weak NPIs • Downward Entailing scope/environment • weak NPIs: any, ever, ... (15) a. Bill didn’t ever say anything. b. No student ever said anything. c. Few students ever said anything. d. At most 5 students ever said anything. e. *Between 5 and 10 students ever said anything. f. *Some/*all/*most students ever said anything. 15/79 Strong NPIs • in weeks, additive either, and punctual until (16) a. Bill didn’t leave until his birthday. b. No student left until his birthday. c. ??Few students left until their birthdays. d. *At most 5 students left until their birthdays. e. *Between 5 and 10 students left until their birthdays. f. *Some/*most/*all students left until their birthdays. 16/79 (17) Anti-additive function: F(x ∨ y) ↔ F(x) ∧ F(y) (18) No student smokes or drinks ↔ No student smokes and no student drinks. (19) Few students smoke or drink ↔ Few students smoke and few students drink • anti-additivity as necessary for Strong NPIs: Zwarts (1998) • popular alternative epxlanation: Gajewski (2011) 17/79 NPIs vs. n-words: modularity • n-words vs. NPIs: syntax (agreement) vs. semantics (monotonicity, ...) • goes well with modularity: distinguishing different forms of ill-formedness (syntactic, semantic, ...) • logical properties correlating with syntactic acceptability (NPIs) → linking the domains • some theories (Heim/Crnič) of NPIs licensing: via presupposition (→ linking pragmatics and syntactic acceptability) 18/79 Czech: “= 0” vs. “< 1” • in Czech: two candidates both for NPI and n-word status: (20) a. Petr Petr neviděl neg.saw ani even jednoho/žádného one/any studenta. student ‘Petr didn’t see any student.’ b. *Ani jeden/*žádný student přišel. Not even one/any student came. c. Petr neslyšel, že *ani jeden/*žádný student přišel. Petr didn’t hear that even one/any student came. 19/79 • the meaning (natural numbers) at first sight identical (21) a. ani jeden N ≈ #( N ) < 1 b. žádný N ≈ #( N ) = 0/¬( N ) • all four possibilities reasonable, Czech tradition (Havránek and others (1960)): item/status NPIs n-words ani jeden X žádný X (22) Research question: do strict neg-concord languages even allow grammaticalization of Strong NPIs? 20/79 Experimental evidence 21/79 Neg-raising • long distance licencing should be possible for NR (unlike for non-NR) in case of NPIs • n-words in Slavic languages obey strict locality (syntax) • predictions: environment/status NPIs n-words NR embedded X non NR embedded X X • experiment 1: Dočekal and Dotlačil (2016) 22/79 (23) a. Ztratila Lost se SE ani not-even jedna one ovce. sheep ‘A single sheep is missing.’ b. Neztratila neg-lost se SE ani not-even jedna one ovce. sheep ‘Not a single sheep is missing.’ c. Nový bača v Tatrách nechce, aby se ztratila ani jedna ovce. new shepherd in Tatras neg-wants C SE lost not-even one sheep. d. Nový bača v Tatrách si nemyslí, že se ztratila ani jedna ovce. new shepherd in Tatras SI neg-think C SE lost not-even one sheep e. Nový bača v Tatrách neříká, že se ztratila ani jedna ovce. new shepherd in Tatras neg-say C SE lost not-even one sheep 23/79 • 5 environments (A) a positive sentence (A) (B) a negative sentence (B) (C) a clause embedded under negated NR predicates of intention and judgement/obligation (e.g. want, advise) (C) (D) a clause embedded under negated NR predicates of opinion (believe) (D) (E) non-NR predicates (E) • only ani jeden 24/79 Figure 1: Experiment 1 25/79 • the scalar approach to NR (Horn (1973), Romoli (2012), Romoli (2013)) • NR predicates (beside the assertion – (24-a)) contribute the excluded middle (EM) to the semantic composition ((24-b)): • alternatives are exhaustified by EXH – (25) (24) a. P = λpλx. x[p] b. Alt(NR) = {λpλx. x[p], λpλx.[ x[p] ∨ x[¬p]]} (25) EXH(Alt(p))(p)(w) = p(w)∧∀q ∈ Excl(p, Alt(p))[¬q(w)] 26/79 (26) ‘A new shepherd in Tatra mountains doesn’t want even one sheep to be missing.’ ¬wants[p] . (27) a. Alt(¬wants[p]) = {¬wants[p], ¬(wants[p] ∨ wants[¬p])} b. EXH (¬wants[p]) = ¬wants[p] ∧ ¬¬(wants[p] ∨ wants[¬p]) |= wants[¬p] • consequence of exhaustification of NR: negation is interpreted as having low scope (semantically) 27/79 • recall: strong NPIs are licensed by anti-additive functions (28) a. It didn’t rain and it didn’t snow. b. It didn’t rain or snow. c. ¬p ∧ ¬q d. ¬[p ∨ q] 28/79 • the same for NR predicates (like want) (29) a. Susan does not want to sleep and she does not want to dance. b. Susan does not want to sleep or dance. c. ¬p ∧ ¬q ↔ d. ¬(p ∨ q) world/proposition p q w1 0 0 w2 0 0 29/79 • not NR predicates (like say): (30-b) does not follow from (30-a) • not-NR are not antiadditive and not able to license strong NPIs (30) a. Susan didn’t say that she will sleep and she didn’t say that she will dance. b. Susan didn’t say that she will sleep or dance. (31) a. ¬ p ∧ ¬ q (true in the table) b. ¬ [p ∨ q] (false in the table) world/proposition p q w1 0 1 w2 1 0 30/79 • initial predictions environment/status NPIs n-words NR embedded X non NR embedded X X • experimental support of clasiffying ani jeden as strong NPI 31/79 Fragment answers • the distinction between n-words and Strong NPIs • in the experiment 3 we observed negative interaction of ani and ellipsis in non-negative questions: (32) Kdo odešel z hospody? who left from pub? a. Žádný student. n-ADJ student b. ??Ani jeden student. NPI one student 32/79 Figure 2: Experiment 3 33/79 • but in Experiment 4 (more context informations) the correlation disappeared: (33) Koho vyhodil profesor Palný včera ze zkoušky? whom fired prof Palný yesterday from exam? a. Žádného studenta. n-ADJ student b. Ani jednoho studenta. NPI one student 34/79 Figure 3: Experiment 4 35/79 • usually taken as the standard test of being n-word (vs. NPIs) • Fălăus, and Nicolae (2016) observes that in strict neg-concord languages n-word answers to negative questions can have (surprisingly) Double Negation (DN) reading: • against the n-words vs. NPIs criterion (two negations) (34) Kdo nepřišel na party? Nikdo. who neg.came to party n-person a. NC-reading: ¬∃x[Person (x) ∧ ComeParty (x)] ≡ ∀x[Person (x) → ¬ComeParty (x)] b. DN-reading: ¬∃x[Person (x) ∧ ¬ComeParty (x)] ≡ ∀x[Person (x) → ComeParty (x)] 36/79 • Slavic speakers (Czech, Slovak, Russian) judgments confirm this (small survey: 10 students) • slight preference (7/10) for NC reading • new data: DN is strengthened by pressence of other n-word(s) (35) Kdo nepřečetl žádný článek? Nikdo. who neg.read n-ADJ article n-person a. NC (2/10): ∀x[Person (x) → ¬∃y[Article (y) ∧ Read (x, y)]] b. DN (8/10): ∀x[Person (x) → ∃y[Article (y) ∧ Read (x, y)]] 37/79 • the same pattern is observed even in affirmative sentences (new data in Slavic languages): (36) Nikdo ničemu nevěří. n-person n-thing neg.believes a. NC: ∀x[Person (x) → ¬∃[Entity (y) ∧ Believes (x, y)]] b. *DN: ∀x[Person (x) → ∃[Entity (y) ∧ Believes (x, y)]] (37) V nic nikdo nevěří. in n-thing n-person believes a. NC (0/10): ∀x[Person (x) → ¬∃[Entity (y) ∧ Believes (x, y)]] b. DN (10/10): ∀x[Person (x) → ∃[Entity (y) ∧ Believes (x, y)]] 38/79 • similarly: (38) Nikdo při té zkoušce nic nenapsal. n-person at the exam n-thing neg.wrote a. NC (10/10): ∀[...¬∃...] b. DN (0/10): ∀[...∃...] (39) Nic při té zkoušce nikdo nenapsal. n-thing at the exam n-person neg.wrote a. NC (0/10): ∀[...¬∃...] b. DN (10/10): ∀[...∃...] 39/79 • assumption (after Fălăus, and Nicolae (2016)): such data → evidence for a focus position in the left-periphery of Slavic clause where n-words can license Covert Negation (CN) • constraints: presence of another n-word(s) plus in same cases ellpisis (but not the sine qua non condition) → double negation reading: CN = ¬ + SN = ¬ (40) CN FOC n-word TP NegP SN VP V n-word 40/79 • inconclusive evidence: both from experiments and DN data • some other factor: left peripheral position licensing second negation but parasitic on SN? • have to be constrained: (41) *V nic Petr věří. in n-thing Petr believes • plan: investigate DN readings w.r.t. n-words/Strong NPIs • prediction: n-words should be preferred 41/79 Likelihood scenarios • n-words vs. NPIs w.r.t. semantic properties • predictions: 1) n-words (syntax) shouldn’t be sensitive to logical properties of their environment (just sentential/verbal negation) 2) NPIs licensed in semantics by definition are 42/79 • very influental current theory of NPI licensing – simple even hypothesis of NPI licensing (Heim (1984), Krifka (1995), Crnič (2014)): – NPIs associate with covert even – NPIs (and focus) generate sets of possible alternatives – covert even associates with the alternatives and generates presupposition of its prejacent being the least probable member of the set of alternatives • predictions of Heim/Crnič theory: NPIs should be sensitive to probability property/item probability n-words * NPIs 43/79 • we tested exactly this prediction in Experiment 3 and Experiment 4 • in both we found strong correlation of ani and probability • side-note: all natural examples of ani: most likely situations (ČNK) in the un-negated form and least probable in the negated form: (42) tento nyní úspěšný podnikatel [...] v prvním měsíci neměl ani jednoho zákazníka this now very succesfull businesman [...] in first month didn’t have [NPI one customer] 44/79 • Experiment 3: ani/žádný in likely (negated) sentences (43) (...) nestal se ani/žádným kardinálem ‘He didn’t become even a cardinal.’ • people strongly preferred žádný (n-word) • it doesn’t clash with the least likely presupposition of ani 45/79 Figure 4: Experiment 3 46/79 • Experiment 4: ellaboration • truth value judgment task • example item (B.A. pass the exam: most unlikely, B.A. fail the exam most likely – negated ne-složili): (44) Scenario: prof. Novák yesterday examined an easy course which B.A., M.A. and Ph.D. students attend. Ph.D. students pass the exam always, M.A. in most cases but B.A. only seldomly. a. Včerejší zkoušku u prof. Nováka nesložili ani/žádní bakaláři. yesterday exam at prof. Novák neg.passed NPI/n-Adj B.A.-students 47/79 Figure 5: Experiment 4 48/79 • and again we found strong preference for žádný (n-word) in most likely scenarios (collision with least likely ani (NPI) presupposition) • conclusion: property/item probability žádný * ani 49/79 • theoretical explanation (least probability): (45) even w(C)(p) is defined only if ∀q ∈ C[q = p → q >likely p] • scope of covert even over ani (plus anti-additivity requirement): (46) [even C] [↓ ¬ [↑ ... ani ...]] (47) [even C] [↓ ¬ [↑ ... ani BA passed ...]] 50/79 Correlations and dialectal variation • the evidence to consider ani a strong NPI is very limited – the only positive evidence: it might appear under negated NR predicates • Question 2: (48) Could speakers differ w.r.t. their categorisation of ani? 51/79 • Experiment 3: we checked whether ani correlates with Likelihood/NR conditions • some speakers might accept likelihood if ani is an n-word for them; • the same speakers should reject NR with ani • a nearly significant negative correlation between such-constructed Likelihood and NR (t = −1.9, p = .065): dialectal variation condition preference correlation A NR ani ≈ n-words correlation A likelihood ani ≈ n-words correlation B NR ani > n-words correlation B likelihood ani < n-words • correlation B: ani strong NPI, correlation A: ani n-word 52/79 Experiment 4: • more ellaborated context (B.A. vs M.A. & Ph.D.) • scales: logically stronger → least likely (Kolmogorov) • plus logically independent but contextually manipulated propositions: restaurant and customers (tourists >likely bureaucrats >likely students): clash of most likely in the context plus ani least likely presupposition (49) nenavštívili ani studenti neg.visited ani students • a strong effect: negative correlation of (z-transformed) ani acceptability in NR with likelihood (t=-3.2, p=.003) 53/79 54/79 • points: mean value of each subject answers • blue line: regression line • NR as a function of Likelihood minimizing residuals • subjects either: – observed ani presupposition and allowed NR with ani – allowed presupposition failure and didn’t accept NR with ani – (no top right corner): no subject allowed presupposition failure of ani and allowed NR with ani • stronger effect in experiment 4 than in experiment 3 55/79 Correlations and dialectal variation summary 1) Speakers more aware of likelihood presupposition of ani prefer it to n-words in NR (negative correlation of likelihood and NR) 2) Speakers more relaxed with ani presupposition failure do not differentiate it from n-words 3) Strong NPIs are licensed semantically via likelihood presupposition 56/79 Summary • n-words and strong NPIs co-exist in natural language • even strict neg-concord languages distinguish Strong NPIs and n-words • n-words are licensed syntactically • NPIs in semantics/pragmatics: antiaditivity + likelihood presupposition (direct evidence for Heim/Crnič type of theory) • the domains are more linked then strict modularity predicts • such subtle date can only be dealt with experimental methods 57/79 Thanks! 58/79 Appendix 59/79 Experiment 1 (NR) • 40 exp. items in part 1 and 20 exp. items in part 2: 60 tested sentences • each part 30 fillers, 60 Czech native speakers, ≈ 1 hour • the experiment online in Ibex: link 60/79 Results of acceptability task • all participants passed control fillers (uncontroversially grammatical/ungrammatical) • acceptability task: modeled by mixed-effects ordered probit regression • Condition C as the reference level • negated sentences, Condition B, were judged as better than NRs (β = 1.84, z = 23, p < .001) • positive sentences, Condition A, were judged as worse than NRs (β = −1.1, z = −15, p < .001) • sentences with negated non-NR (E) predicates worse than any NR (β = −0.65, z = −9, p < .001) • evidence for: 1) treating ani ‘not even’ and až do ‘until’ as a strict NPIs 2) Czech has a class of NR verbs. 61/79 Experiment 2 Mixed-effects probit models to analyze the data with mood (subjunctive vs. indicative), predicate type (opinion, probability, communication) and their interaction as fixed effects • NR predicates ((55) and (56)) judged as significantly better than non-NR communication predicates (57) – z = -2.51, p = 0.012 • no difference between opinion and probability NR predicates • subjunctive mood better than indicative mood (z = 2.39, p = 0.017) • strict NPIs (ani jeden ‘not even one’) judged as worse than HSEs (až do ‘until’) with NR predicates (z = 2.65, p = 0.008) 62/79 Post-hoc analysis of two types of strict NPIs • ‘even one’ was fully acceptable in sentences with clause-mate negation but degraded with negated NR predicates (β = −4.7, z = 10.4, p < .001) – (50-a) (one of the items in two conditions) • with non-NR predicates ((50-b)) ‘even one’ was judged as worse than with NR predicates (β = −1.1, z = 5.7, p < .001). (50) a. Náš our nový new knihovník librarian si SE nepřeje, neg-wishes aby C zmizela lost ani even jedna one kniha. book ‘Our new librarian doesn’t wish even one book to be missing.’ b. Náš nový knihovník neslyšel, že zmizela ani jedna kniha. ‘Our new librarian didn’t hear that even one book was lost.’ 63/79 • ‘until’ behaved strangely differently: significantly less acceptable in sentences with clause-mate negation compared to ‘even one’ (β = −3.2, z = −6.4, p < .001) • even more surprisingly ‘until’ was more acceptable than ‘even one’ with NR predicates (β = 0.6, z = 2.6, p < .01) – (51-a) 64/79 Experiment 3 • We analyzed the data in a mixed-effects linear model with subject and item intercept+slope random effects. • The dependent variable was a by-subject z-transformed response. • The independent variables were environment (ref-level: without), expression, (ref-level: žádný) and their interaction. 65/79 • The model also revealed a negative interaction of ani by ellipsis and likelihood (t = −2.6, p < .05, t = −4.7, p < .001) • The interactions show that ani is worse in ellipses/the likelihood constructions than n-words, but it is better under NR predicates than n-words schematic structure preference condition A: Subj V? B: ... n-word > ani jeden ellipsis Subj V ... n-word > ani jeden likelihood • We found a negative main effect of NR (t = −4.1, p < .001): n-words in NR are significantly worse than in the reference level condition, without 66/79 • and a positive interaction of ani by nr (t = 2.4, p < .05): ani (jeden) is far more acceptable than n-words in: schematic structure preference condition [Subj ¬NR-V [emb-V ...] ani jeden > n-word NR 67/79 Summary • The results taken together strongly support the position that: 1) ani (jeden) ‘even (one)’ is a strong NPI and not an n-word 2) strong NPIs co-exist with n-words in Czech. 68/79 Predicative position (51) a. Petr není žádný lékař. b. *Petr není ani jeden lékař. • ¬doctor(petr) (52) Petr a Marie jsou 2 lékaři. X = ∗doctor ∧ #(X) = 2 ∧ X(Petr Marie) 69/79 • ani jeden vs. žádný in predicative (and possibly idiomatic) positions: (53) *Petr není ani jeden lékař. X = ∗doctor ∧ #(X) < 1 ∧ X(Petr) (54) Petr nekupoval žádného/???ani jednoho zajíce v pytli. a. ¬BuyRabitInSack(Petr) b. ¬K(P, X) ∧ X = RabitInSack ∧ #(X) < 1 70/79 Strong NPIs are not one homogenous class • ani jeden vs. až do • až do better unlike ani jeden acceptability of sentences with strict NPIs, ani jeden ‘even one’ and HSE až do ‘until’ + time expression • three predicate types: (55) opinion class of NRs, (56) probability class of NRs, (57) non-NR communication predicates • each environment was varied for the mood of the predicate in the embedded clause (indicative mood vs. subjunctive mood) • 36 exp. items in 2x3 (=6) conditions + 36 fillers 71/79 (55) Nemyslím, do-not-think-I že that 0/by IND/SUBJ ani even jeden one z of běžců runners může/mohl can/could ten the závod race vyhrát. win ‘I don’t think that even one of the runners can/could win the race.’ (56) Není it’s-not možné, possible že that 0/by IND/SUBJ ani even jeden one z of běžců runners může/mohl can/could ten the závod race vyhrát. win ‘It’s not possible that even one of the runners can/could win the race.’ (57) Netvrdím, do-not-say-I že that 0/by IND/SUBJ ani even jeden one z of běžců runners může/mohl can/could ten the závod race vyhrát. win 72/79 • ‘even one’ behaved like a strict NPI: fully licensed by the clause-mate negation • licensed by a non-local NR negation but hardly acceptable with a non-local non-NR negation (not anti-additive) • ‘until’ behaved strangely differently: significantly less acceptable in sentences with clause-mate negation compared to ‘even one’ 73/79 74/79 Conclusion: • ani jeden is strong NPI • až do aspectually sensitive expression which requires its local predicate to be homogeneous – most frequent occurrences of Czech ‘until’ in the SYN2010 corpus: upward entailing with imperfective verbs 75/79 Experiment 4 • Cumulative Link Mixed Model fitted with the Laplace approximation formula: as.factor(Answer) ~ Condition + (1 | Subject) + (1 | Item) data: datalik link threshold nobs logLik AIC niter max.grad cond.H probit flexible 320 -403.53 821.07 459(1422) 5.97e-04 1.3e+02 Random effects: Groups Name Variance Std.Dev. Subject (Intercept) 0.3482 0.5901 Item (Intercept) 0.1229 0.3505 Number of groups: Subject 40, Item 16 Coefficients: Estimate Std. Error z value Pr(>|z|) Conditionlik-a -1.6706 0.2313 -7.221 5.14e-13 *** --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 76/79 References I Crnič, Luka. 2014. “Against a Dogma on Npi Licensing.” The Art and Craft of Semantics: A Festschrift for Irene Heim 1:117–45. Dočekal, Mojmír, and Jakub Dotlačil. 2016. “Experimental Evidence for Neg-Raising in Slavic.” Linguistica 56 (1). University of Ljubljana, Faculty of Arts:93. Fălăus, , Anamaria, and Andreea Nicolae. 2016. “Fragment Answers and Double Negation in Strict Negative Concord Languages.” In Semantics and Linguistic Theory, 26:584–600. Gajewski, Jon R. 2011. “Licensing Strong Npis.” Natural Language Semantics 19 (2). Springer:109–48. Giannakidou, Anastasia. 1997. The Landscape of Polarity Items. Rijksuniversiteit. Giannakidou, Anastasia, and Hedde Zeijlstra. 2017. “The Landscape of Negative Dependencies: Negative Concord and N-Words.” Linguistics Companion, 2nd Edition. New York: Blackwell. Havránek, Bohuslav, and others. 1960. Slovník Spisovného Jazyka českého. Nakl. Československé akademie věd. 77/79 References II Heim, Irene. 1984. “A Note on Negative Polarity and Downward Entailingness.” In Proceedings of Nels, 14:98–107. 1983. Horn, Laurence Robert. 1973. “On the Semantic Properties of Logical Operators in English.” Krifka, Manfred. 1995. “The Semantics and Pragmatics of Polarity Items.” Linguistic Analysis 25 (3-4):209–57. Ladusaw, William A. 1992. “Expressing Negation.” In Semantics and Linguistic Theory, 2:237–60. Progovac, Ljiljana. 1993. “Negative Polarity: Entailment and Binding.” Linguistics and Philosophy 16 (2). Springer:149–80. Romoli, Jacopo. 2012. “Soft but Strong. Neg-Raising, Soft Triggers, and Exhaustification.” PhD thesis, Harvard University. ———. 2013. “A Scalar Implicature-Based Approach to Neg-Raising.” Linguistics and Philosophy 36 (4). Springer:291–353. Zeijlstra, Hedde. 2004. Sentential Negation and Negative Concord. LOT/ACLC. 78/79 References III ———. 2008. “Negative Concord Is Syntactic Agreement.” Ms., University of Amsterdam 5:113. Zwarts, Frans. 1998. “Three Types of Polarity.” In Plurality and Quantification, 177–238. Springer. 79/79