Full Idea
An unstructured proposition is a set of possible worlds. ....Structured propositions contain entities that correspond to various parts of the sentences or thoughts that express them.
Gist of Idea
Unstructured propositions are sets of possible worlds; structured ones have components
Source
Edwin D. Mares (A Priori [2011], 02.3)
Book Reference
Mares,Edwin: 'A Priori' [Acumen 2011], p.17
A Reaction
I am definitely in favour of structured propositions. It strikes me as so obvious as to be not worth discussion - so I am obviously missing something here. Mares says structured propositions are 'more convenient'.