Full Idea
The models for sentential logic map sentences to truth-values. The models for predicate logic map parts of sentences to objects and sets.
Gist of Idea
Sentence logic maps truth values; predicate logic maps objects and sets
Source
Trenton Merricks (Propositions [2015], 2.II)
Book Reference
Merricks,Trenton: 'Propositions' [OUP 2015], p.45
A Reaction
Logic books rarely tell you important things like this. That is why this database is so incredibly important! You will never understand the subject if you don't collect together the illuminating asides of discussion. They say it all so much more simply.