Full Idea
We might say that those truths that do not need truth-makers are those that are negative. Those that do need truth-makers are those that are positive.
Gist of Idea
Maybe only 'positive' truths need truth-makers
Source
Jonathan Tallant (Metaphysics: an introduction [2011], 10.8)
Book Reference
Tallant,Jonathan: 'Metaphysics - an introduction' [Continuum 2011], p.226
A Reaction
If you deny the existence of something, there is always an implicit domain for the denial, such as 'on the table', or 'in this building', or 'in the cosmos'. So why can't that domain be the truthmaker for a negative existential?