Full Idea
Boolos's conception of plural logic is as a reinterpretation of second-order logic.
Gist of Idea
Boolos reinterprets second-order logic as plural logic
Source
report of George Boolos (On Second-Order Logic [1975]) by Oliver,A/Smiley,T - What are Sets and What are they For? n5
Book Reference
'Metaphysics (Philosophical Perspectives 20)', ed/tr. Hawthorne,John [Blackwell 2006], p.152
A Reaction
Oliver and Smiley don't accept this view, and champion plural reference differently (as, I think, some kind of metalinguistic device?).