Aspect in Ancient Greek - Nijmegen Centre for Semantics
Aspect in Ancient Greek - Nijmegen Centre for Semantics
Aspect in Ancient Greek - Nijmegen Centre for Semantics
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72 Chapter 3. <strong>Aspect</strong> <strong>in</strong> <strong>for</strong>mal semanticsre<strong>in</strong>terpretation is <strong>in</strong>volved, but how the mismatch is resolved, i.e. which paththrough the network <strong>in</strong> chosen, is determ<strong>in</strong>ed by world knowledge. In thefollow<strong>in</strong>g section I zoom <strong>in</strong> on one <strong>in</strong>stance of world knowledge <strong>in</strong>fluenc<strong>in</strong>gre<strong>in</strong>terpretation phenomena, viz. knowledge concern<strong>in</strong>g the typical duration ofeventualities.3.3.3 Egg’s Duration Pr<strong>in</strong>cipleEgg devotes the last chapter of his 2005 book to the role of knowledge concern<strong>in</strong>gthe typical duration of eventualities <strong>in</strong> re<strong>in</strong>terpretation phenomena. HisDuration Pr<strong>in</strong>ciple states that <strong>in</strong><strong>for</strong>mation on the duration of an eventualitythat is <strong>in</strong>troduced by various l<strong>in</strong>guistic expressions must be consistent. Thispr<strong>in</strong>ciple has a twofold function <strong>in</strong> re<strong>in</strong>terpretation phenomena: (i) it guidesthe choice <strong>for</strong> a specific re<strong>in</strong>terpretation operator from the set of feasible re<strong>in</strong>terpretations<strong>in</strong> the case of coercion triggered by other sources, and (ii) ittriggers its own re<strong>in</strong>terpretations.Let’s first consider an example of the first function (from Egg 2005:204):(95) a. Max played the ‘Fly<strong>in</strong>g Dutchman’ on his stereo <strong>for</strong> 5 months.b. Max played the ‘Fly<strong>in</strong>g Dutchman’ on his stereo <strong>for</strong> 10 m<strong>in</strong>utes.Accord<strong>in</strong>g to Egg’s analysis, <strong>for</strong>-adverbials require unbounded predicates, butMax play the ‘Fly<strong>in</strong>g Dutchman’ on his stereo is a bounded predicate. Thismismatch <strong>in</strong> aspectual class has to be solved by an <strong>in</strong>terven<strong>in</strong>g coercion operator.From an aspectual po<strong>in</strong>t of view, there are at least two coercion operatorsthat could solve the mismatch: a progressive and an iterative operator. Egg(2005:94-97) def<strong>in</strong>es these operators as follows:(96) PROGR = λPλe∃e ′ [P(e ′ ) ∧ τ(e) ⊏ τ(e ′ )](97) ITER = λPλe∃E[∪E = e ∧ ¬P(e) ∧ ∀e ′ [e ′ ∈ E → P(e ′ )]]Both operators are functions from predicates of eventualities onto predicatesof eventualities. PROGR resembles Krifka’s PROG operator, (66). ITER(P) is trueof an eventuality e iff there is a set of eventualities E whose convex closure(this is expressed by ‘∪’) is e and P does not hold <strong>for</strong> e but does hold <strong>for</strong>all eventualities <strong>in</strong> E. 33 Crucial <strong>for</strong> (95) is the effect of the two operators onthe duration associated with the predicate. There are eventualities <strong>in</strong> theextension of PROGR(P) that are shorter than the shortest eventuality <strong>in</strong> theextension ofP, but no eventualities that are longer than the longest eventuality33 The convex closure of a set of eventualities is the smallest convex eventuality such thatall eventualities <strong>in</strong> the set are part of this eventuality. However, as <strong>in</strong> Krifka’s account (seesection 3.2.2), the notion of convexity <strong>for</strong> eventualities is not def<strong>in</strong>ed and it is hard to seewhat it should mean.