Full Idea
If a singular proposition is 'directly about' an entity, I argue that a singular proposition does not have the entity that it is directly about as a constituent.
Gist of Idea
Propositions can be 'about' an entity, but that doesn't make the entity a constituent of it
Source
Trenton Merricks (Propositions [2015], Intro)
Book Reference
Merricks,Trenton: 'Propositions' [OUP 2015], p.-3
A Reaction
This opposes the view of the early Russell, that propositions actually contain the entities they are about, thus making propositions real features of the external world. I take that view of Russell's to be absurd.