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Full Idea
In modern predicate logic, definite reference by proper names is the primary and sole form of reference.
Gist of Idea
In standard logic, names are the only way to refer
Source
Fred Sommers (Intellectual Autobiography [2005], 'Reference')
Book Ref
'The Old New Logic', ed/tr. Oderberg,David S. [MIT 2005], p.16
A Reaction
Hence we have to translate definite descriptions into (logical) names, or else paraphrase them out of existence. The domain only contains 'objects', so only names can uniquely pick them out.