Pre-supposing?

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Introduction • Problem: does the novelty of informative pps conflict with their pre-supposed status? • This talk: 1. pps not necessarily ‘taken for granted’ 2. A pp is an ‘already true’ proposition. 3. Time-sensitive modeling of pps 6
Informativity of a pp • Notation : – s ✷ φ =def ∀w ∈ s(w |= φ) (acceptance) – s ♦ φ =def ∃w ∈ s(w |= φ) (admittance) – s w1...wα ♦ =def ∀w ∈ s(w |= φ iff w ∈ {w1 . . . wα}) – w |= Belxφ =def ∀w ′ (wRBel,xw ′ ⇒ w ′ |= φ) – w |= Admxφ =def ∃w ′ (wRBel,xw ′ & w ′ |= φ) – sx (the belief state of x) =def {w ′ : wRBel,xw ′ }, w being the current world. 7
Page 1 and 2: Pre-supposing? Jacques Jayez ENS-LS
Page 3 and 4: Introduction • Different theories
Page 5: Introduction • Problem: does the
Page 9 and 10: Informativity and common ground •
Page 11 and 12: Informativity and common ground •
Page 13 and 14: Presuppositions and Heimian semanti
Page 19 and 20: Informative pps and ∂ • Def. of
Page 21 and 22: • admittance ⇒ acceptance ‘Lo
Page 23 and 24: ‘Local’ pps and ∂ • Beaver
Page 25 and 26: ‘Local’ pps and ∂ • Beaver
Page 27 and 28: Consequences and options • Forms
Page 29 and 30: • Local projection Consequences a
Page 31 and 32: Pre-supposing • ψ pp φ = at the
Page 33 and 34: Pre-supposing • If ψ holds at w
Page 35 and 36: Pre-supposing • General strategy:
Page 37 and 38: Partiality • (12) Partiality w |=
Page 39 and 40: Partiality • (15) State updates 1
Page 41 and 42: Pre-supposing • The idea: the spe
Page 43 and 44: Pre-supposing: the definition • (
Page 45 and 46: • Df of pre-supposing Pre-supposi
Page 47 and 48: • Inferences = pps Pre-suppositio
Page 49 and 50: Communicated pps • What is commun
Page 51 and 52: Communicated pps • What is commun
Page 53 and 54: Communicated pps • (20) x communi
Page 55 and 56: • Refutation again Assertions, pp
Page 57 and 58:
Assertions, pps and CIs • The loi
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Assertions, pps and CIs • Detacha
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• Pps are sometimes ‘detachable
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Assertions, pps and CIs • Suspend
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Communicated pps • Consequence: t
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Communicated pps • Temporal epist
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• Temporal updates Communicated p
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• pp update Communicated pps •
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• Assertive updates Communicated
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Summary • Assertion that φ by x:
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References Beaver, David I. 1995. P
Page 79 and 80:
van der Sandt, Rob & Geurts, Bart.
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