Top Banner
1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern University
36

1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

Dec 23, 2015

Download

Documents

Norma Harrell
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Page 1: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

1

Workshop 5Formal Approaches to the

Relation of Tense, Aspect and Modality

CoordinatorsYukinori Takubo Stefan KaufmannKyoto University Northwestern University

Page 2: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

Basic ideas behind the theme of the workshop

A: Forms that express tense, aspect and modality may be related, or may be the same in some languages.

B: Devise some formal mechanisms that explain A, if A is the case

2

Page 3: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

A case study:

• tokoro-da in Japanese

• Aspectual forms+tokoro-da:

Immediacy

• Conditional consequence+tokoro-da: Counterfactuality

3

Page 4: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

Some basic facts• Non-past form: RU /ru/~/u/

• Past form:TA /ta/~/da/

• Progressive form: TEI

4

Page 5: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

Nonstative verb+RU

Event e succeeding the reference time r (or ut): future, either remote or immediate

John-wa akai zyaketto-o ki-ru TOP red jacket-ACC wear-RU

John will wear a jacket {now, for his 60th birthday in two years}

5

Page 6: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

Nonstative+TA

Event e immediately or remotely preceding r (or ut)

John- wa akai zyaketto-o ki-ta TOP red jacket-ACC wear-TA

John wore a jacket {just now, for his 60 the birthday in two years ago}

6

Page 7: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

Stative+ru/ta• When attached to statives /-ru/ means that a stative eventuality e holds at r preceding

ut.

Watasi-ni wa eigo-ga hanase-ru . I-Dat TOP English-NOM can_speak-RU 'I can speak English (now).'

/-ta/ means that a stative eventuality e holds at r succeeding ut.

Watasi-ni wa eigo-ga hanase-ta . I-Dat TOP English-NOM can_speak-TA 'I was able to speak English (then).'

7

Page 8: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

8

tei form

John- wa akai zyaketto-o ki-tei {ru,ta} TOP red jacket-ACC wear-TEI {RU,TA}

John is putting on a red jacket. Progressive

John has a red jacket on. Resultative state

(Li.) John has worn a red jacket ten years ago (for his 60th birthday). Perfect or past experience

  

Page 9: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

9

ru-tokoro-da

• Only immediate future reading is possible for V-ru tokoro-da

Watasi-wa ima-kara akai jacket-o ki-ru tokoro-daI-TOP now from red jacket-ACC wear-RU TOKORO-COP

I am going to put on a red jacket from now.

* Watasi-wa 2 nen go ni akai jacket-o ki-ru tokoro-daI-TOP two years from now red jacket-ACC wear-RU TOKORO-COP

I am going to put on a red jacket 2 years from now

Page 10: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

10

Ta-tokoroda

Only immediate past reading for V-ta+tokoro-da

Watasi-wa ima akai jacket-o ki-ta tokoro-daI-TOP now red jacket-ACC wear-TA TOKORO-COP

I have just put on a red jacket.

* Watasi-wa 2 nenmae ni akai jacket-o ki-ta tokoro-daI-TOP two years from now red jacket-ACC wear-RU TOKORO-COP

I put on a red jacket 2 years ago

Page 11: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

11

te i-ru+ tokorodaOnly progressive reading is possible for tei{ru/ta} tokoroda

a. John- wa akai zyaketto-o ki-tei {ru,ta} tokoro-da TOP red jacket-ACC wear-TEI {RU,TA} tokoro-COP

John is putting on a red jacket. Progressive

b. *John- wa sakki kara akai zyaketto-o ki-tei {ru,ta} tokoro-da

TOP a moment since red jacket-ACC wear-TEI {RU,TA} tokoro-COP

John has a red jacket on since moment ago. Resultative state

c.*John- wa 2 nenmae akai zyaketto-o ki-tei {ru,ta} tokoro-da TOP 2 yeas ago red jacket-ACC wear-TEI {RU,TA} tokoro-COP

(Li.) John has worn a red jacket ten years ago (for his 60th birthday). Perfect or past experience

Counterfactual interpretation of c is possible.

Page 12: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

12

Stative verbs+tokoro-da:tokoro-da cannot be attached to stative verbs

*Watasi-ni wa eigo-ga dekiru tokoro-da. I-Dat TOP English-NOM can-TOKORO-COP 'I can read English.'

• Stative+tokoro-da must be interpreted as counterfactual, rather than aspectual.

Watasi-ga America-de umareteitara, eigo-ga hanaseru tokoroda. I-NOM America-LOC was-born-if English-NOM can-speak TOKORO-COP If I were born in America, I would be able speak English now.

Page 13: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

Interim summary

• RU vague for immediate or remote future• TA vague for immediate or remote past• TEI(RU/TA) progressive, resultant state,

perfect • RU tokoroda: immediate future• TA tokoroda: immediate past• TEI (RU/TA)tokoroda: progressive• Stative,Nonprogressive TEI+tokoroda:

counterfactual13

Page 14: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

14

tokoro: tokoro as a point of reference marker.

Page 15: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

15

Spatial relation

□       ○

• ○ as the reference □-wa ○-no hidari-ni aru. TOP GEN left-LOC be ‘□is to the left of ○.’

• □ as the reference ○-wa □‐no migi-ni aru TOP GEN right-LOC be ‘□is to the right of ○.’

Page 16: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

16

  △ ▲ ▽ □ ■ ● ◎ー>         ○ー>

• □-wa ■-no hidari-ni aru. TOP GEN left-LOC be ‘□is to the left of ■.’

• tokoro as the reference point marker ○-wa □-no tokoro-ni aru TOP GEN right-LOC be

‘○is at □ (not right or left).’

Page 17: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

17

Relational noun for time:go-home>have-dinner>brush-teeth>go-to-bed. (25) Neru mae-ni ha-o migaku.

go-to-sleep before teeth-ACC brush (I) brush teeth before going to bed.

neru(e)<go-to-bed(e)

ha-o migai-ta ato-de neru teeth acc brush after-LOC sleep (I) go to bed after brushing my teeth. mae-ni (x,y) : x is before yneru mae-ni ha-o migaku ha-o migaku‘(e)<neru‘(e)

ato-de (x,y): x is afer yha-o migai-ta ato-de neru ha o migaku’(e)<neru’(e)

Neru' is the point of reference for the temporal relation before.

Page 18: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

18

Tokoro as a marker for the point of

reference.

Tokoro is can be considered as a special kind of relational noun representing a reference point:

R(x,y) [(x is at y) & y is the reference point]

Spatial relation:no higasi (x,y) : x is on/ to the east of yno mae (x, y) : x is in front of yno tokoro (x,y): x is (not in front of or east of but) at y   Temporal relation mae-ni (x,y): x takes place before y ato-de (x.y): x takes place after y tokoro-de (x.y): x takes place (not before or after but) at y

Page 19: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

19

ru-form:   <----------r-------- [ e ] in contact with (r,e) or preceding (r, e)

ta-form: [ e ]-----r-------------------- in contact with (r,e) or succeeding (r,e)

tei-form: [ -- e--r---] --------r-- included (r, e) or succeeding (r, e)

e is the reference point in each tense/ aspect expression

Page 20: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

20

tokoro picks out e as the point of reference: r at e.

ru-tokoro-da form:   <----------r-------- [s e f] in contact with or preceding (r, e) and r at e : r in contact

with the start time of eta-tokoro-da form: [s e f]-----r-------------------- in contact with or succeeding (r,e) and r at e: r in contact

with the finishing time of e

tei-(ru/ta)-tokoro-da form: [s -- e--r--- f]-- -r---------

{included (r, e) or succeeding (r, e) } and r at e: included (r,e)

20

Page 21: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

21

tokoro-da in counterfactuals

Statives+tokorodaAmerica-de umareteitara, eigo-ga hanaseru tokoroda. America-in was-born-if English-NOM can-speak TOKORO-COP

If I had been born in America, I would be able speak English now.

Perfect+tokoroda

Nihon-ni itara, 2 nenmae akai zyaketto-o ki-tei {ru,ta} tokoro-daJapan-in be-if 2 yeas ago red jacket-ACC wear-TEI {RU,TA} tokoro-COP

(Li.) If I had been in Japan, I would have worn a red jacket two years ago (for my 60th birthday

Page 22: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

• tokoro-da can be either temporal or modal.

• Nonstative+tokoro-da can either be temporal or modal.

• Stative+tokoro-da can only be modal.

Why?

22

Page 23: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

• Nonstative eventuality: r: R(r,e)

R: precedence, inclusion, succession

• Stative eventuality: true at r : e⊃r

• tokoro-da restricts R to inclusion, which, in the case of statives is redundant if interpreted temporally, hence the obligatory modal interpretation

23

Page 24: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

But why counterfactual?

24

Page 25: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

Assumption

A: Lexical properties of tokoro as a point of reference forces sentences with tokoro-da to be interpreted as an eyewitness report, thereby committing the speaker to its truth.

We will show the assumption A is enough to derive the counterfactual status of stative+tokoro-da conditionals.

25

Page 26: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

a. if p then q tokoro-da

By the lexical properties of tokoro-da, the

speaker knows that q is true in a. So b holds.

b. q is true∧ (p→q)

Given b, saying just q is more informative than saying a, unless by a you want to say q if p (or q iff p).

  

Page 27: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

• (the speaker knows q is true) and (q only if p). The three possible cases for the status of p.

a)the speaker knows that p is true.

b)the speaker knows that p is false.

c)the speaker does not know whether p is true or false.

Since q is true, q only if p should be false if (b) is true. Since q only if p, if the speaker knows q is true, then he should know that p is true, because p is the necessary condition for q to hold. So c cannot be the case.

Page 28: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

• The speaker knows that p is true.

a. Suppose the speaker assumes that the hearer believes not p is true. ¬ p∧q

In this context conditional forms are inappropriate to correct the hearer’s assumption in J. Concessive forms must be used.

Page 29: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

• b. Suppose the speaker knows p is true and assumes that the hearer does not know whether p is true.

Conditional forms are not appropriate. Reason forms must be used.

Page 30: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

• Conditional forms cannot be used if the speaker knows that q is true!

Page 31: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

• Suppose the speaker knows that q is false, that is, ¬ q is true.

the speaker knows that p is true ->the conditional becomes false, violating Grice’s maxim of quality.

the speaker know that p is false->the conditional sentence is okay!

Page 32: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

conditional tokoro-da location on the vertical axis

       q      --------B--- closest counterfactual situation

p ( p,q)

E ------------A---- reality ( ¬ p, ¬ q)

¬ p   ¬ q

Page 33: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

Summary

i) tokoro-da can be either temporal or modal (or spatial).

ii) Nonstatives-tokoro-da can either be temporal or modal.

iii) Statives-tokoro-da can only be modal and counterfactual.

Page 34: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

• iv) (iii) is to be attributed to the the lexical meaning of tokoro as a reference point marker :

• tokoro places r at e• q tokoro-da is part of the reality where the

speaker’s point of view is.

This is a case where tense, aspect and modality meet.

34

Page 35: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

Conclusion

• Let us talk about things like this in this workshop and try to find how they can be formalized!

35

Page 36: 1 Workshop 5 Formal Approaches to the Relation of Tense, Aspect and Modality Coordinators Yukinori Takubo Stefan Kaufmann Kyoto University Northwestern.

Mosi kono kanzya-ga gan dat-ta ra,

if this patient-NOM cancer be-PAST

ima aru-itami-ga at-ta tokoro-da.

now (in reality) exist pain-NOM now exist PAST probably

tasikani, kare-wa itami-ga at-ta

Indeed he-TOP pain-NOM be-PAST

 

Dakara kare-wa gan-da.

therefore he-TOP has-cancer-PRES

[intended]‘If this patient had cancer, he would suffer from the pain that he is now suffering. Thus, he has cancer.’

•