Full Idea
When a statement of being or non-being is analysed by Russell's theory of descriptions it ceases to contain any expression which even purports to name the alleged entity, so the being of such an entity is no longer presupposed.
Gist of Idea
The theory of descriptions eliminates the name of the entity whose existence was presupposed
Source
report of Bertrand Russell (On Denoting [1905]) by Willard Quine - On What There Is p.6
Book Reference
'Metaphysics - An Anthology', ed/tr. Sosa,E. /Kim,J. [Blackwell 1999], p.6