more on this theme | more from this thinker | more from this text
Full Idea
Since Frege and Russell were mainly interested in formalizing mathematics, the only quantifiers they needed were the universal and existential one.
Gist of Idea
The universal and existential quantifiers were chosen to suit mathematics
Source
Scott Soames (Philosophy of Language [2010], 1.22)
Book Ref
Soames,Scott: 'Philosophy of Language' [Princeton 2010], p.23