Full Idea
Saying 'the number of Fs is 5', instead of using five quantifiers, puts the numeral in quantifiable position, which brings expressive advantages. 'There are more sheep in the field than cows' is an infinite disjunction, expressible in finite compass.
Gist of Idea
Putting numbers in quantifiable position (rather than many quantifiers) makes expression easier
Source
Stephen Yablo (Abstract Objects: a Case Study [2002], 08)
Book Reference
-: 'Nous' [-], p.231
A Reaction
See Hofweber with similar thoughts. This idea I take to be a key one in explaining many metaphysical confusions. The human mind just has a strong tendency to objectify properties, relations, qualities, categories etc. - for expression and for reasoning.