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Single Idea 12154

[filed under theme 6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / d. Counting via concepts ]

Full Idea

If we list the words 'bull', 'bull' and 'cow', it is often said that there are three 'word tokens' but only two 'word types', but Geach says there are not two kinds of object to be counted, but two different ways of counting the same object.

Gist of Idea

Are 'word token' and 'word type' different sorts of countable objects, or two ways of counting?

Source

report of Peter Geach (Reference and Generality (3rd ed) [1980]) by John Perry - The Same F II

Book Ref

'Metaphysics - An Anthology', ed/tr. Sosa,E. /Kim,J. [Blackwell 1999], p.93


A Reaction

Insofar as the notion that a 'word type' is an 'object', my sympathies are entirely with Geach, to my surprise. Geach's point is that 'bull' and 'bull' are the same meaning, but different actual words. Identity is relative to a concept.


The 12 ideas with the same theme [grouping by concept for counting]:

Our concepts decide what is countable, as in seeing the leaves of the tree, or the foliage [Frege, by Koslicki]
Frege's 'isolation' could be absence of overlap, or drawing conceptual boundaries [Frege, by Koslicki]
Non-arbitrary division means that what falls under the concept cannot be divided into more of the same [Frege, by Koslicki]
A concept creating a unit must isolate and unify what falls under it [Frege]
Frege says counting is determining what number belongs to a given concept [Frege, by Koslicki]
Are 'word token' and 'word type' different sorts of countable objects, or two ways of counting? [Geach, by Perry]
Counting 'coin in this box' may have coin as the unit, with 'in this box' merely as the scope [Ayers]
If counting needs a sortal, what of things which fall under two sortals? [Ayers]
Maybe the concept needed under which things coincide must also yield a principle of counting [Wiggins]
The sortal needed for identities may not always be sufficient to support counting [Wiggins]
Instances of a non-sortal concept can only be counted relative to a sortal concept [Wright,C]
We struggle to count branches and waves because our concepts lack clear boundaries [Koslicki]