Abstract:For various reasons several authors have enriched classical first order syntax by adding a predicate abstraction operator. ''Conservatives'' have done so without disturbing the syntax of the formal quantifiers but ''revisionists'' have argued that predicate abstraction motivates the universal quantifier's re-classification from an expression that combines with a variable to yield a sentence from a sentence, to an expression that combines with a one-place predicate to yield a sentence. My main aim is to advance… Show more
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