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Single Idea 10579

[filed under theme 6. Mathematics / C. Sources of Mathematics / 9. Fictional Mathematics ]

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 Ref

-: '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.


The 11 ideas with the same theme [mathematics is purely invented, and is not true]:

Logic and maths refer to fictitious entities which we have created [Nietzsche]
Numbers are classes of classes, and hence fictions of fictions [Russell]
Higher cardinalities in sets are just fairy stories [Bostock]
A fairy tale may give predictions, but only a true theory can give explanations [Bostock]
Fictionalists say 2+2=4 is true in the way that 'Oliver Twist lived in London' is true [Field,H]
Mathematics is only empirical as regards which theory is useful [Field,H]
Abstractions can form useful counterparts to concrete statements [Field,H]
Why regard standard mathematics as truths, rather than as interesting fictions? [Field,H]
Putting numbers in quantifiable position (rather than many quantifiers) makes expression easier [Yablo]
Platonic objects are really created as existential metaphors [Yablo]
Why is fictional arithmetic applicable to the real world? [Potter]