In order to accommodate his view that quantifiers are predicates of predicates
within a type theory, Frege introduces a rule which allows a function name to be
formed by removing a saturated name from another saturated name which contains
it. This rule requires that each name has a rather rich syntactic structure,
since one must be able to recognize the occurrences of a name in a larger name.
However, I argue that Frege is unable to account for this syntactic structure. I
argue that this problem undermines the inductive portion of Frege's proof that
all of the names of his system denote in
§§29–32 of The Basic Laws.