Full Idea
The truthmaker thesis is that an object is a truthmaker for a sentence if and only if its existence entails the sentence.
Gist of Idea
A truthmaker is an object which entails a sentence
Source
JC Beall / G Restall (Logical Pluralism [2006], 5.5.3)
Book Reference
Beall,J/Restall,G: 'Logical Pluralism' [OUP 2006], p.57
A Reaction
The use of the word 'object' here is even odder than usual, and invites many questions. And the 'only if' seems peculiar, since all sorts of things can make a sentence true. 'There is someone in the house' for example.