Quantificational variability effect
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Quantificational variability effect (QVE) is the intuitive equivalence of certain sentences with quantificational adverbs (Q-adverbs) and sentences without these, but with quantificational determiner phrases (DP) in argument position instead.
- 1. (a) A cat is usually smart. (Q-adverb)
- 1. (b) Most cats are smart. (DP)
- 2. (a) A dog is always smart. (Q-adverb)
- 2. (b) All dogs are smart. (DP)[1]
Analysis of QVE is widely cited as entering the literature with David Lewis' "Adverbs of Quantification" (1975), where he proposes QVE as a solution to Peter Geach's donkey sentence (1962). Terminology, and comprehensive analysis, is normally attributed to Stephen Berman's "Situation-Based Semantics for Adverbs of Quantification" (1987).
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