Full Idea
The anti-realist declines to permit that all statements have truth-values. ...The essence of the anti-realist position is that evidence and ontology cannot be separated.
Gist of Idea
Anti-realists deny truth-values to all statements, and say evidence and ontology are inseparable
Source
Stephen Mumford (Dispositions [1998], 03.6)
Book Reference
Mumford,Stephen: 'Dispositions' [OUP 1998], p.50
A Reaction
[second half on p.51] The idea that evidence and ontology are 'inseparable' strikes me as an absurd idea. The proposal that you should not speculate about ontology without some sort of evidence is, of course, not unreasonable.