Full Idea
'The rug is green' might be warrantedly assertible even though the rug is not green.
Gist of Idea
'The rug is green' might be warrantedly assertible even though the rug is not green
Source
Hilary Putnam (Meaning and the Moral Sciences [1978], Pt Three)
Book Reference
Putnam,Hilary: 'Meaning and the Moral Sciences' [RKP 1981], p.108
A Reaction
The word 'warranted' seems to be ambiguous in modern philosophy. See Idea 6150. There seem to be internalist and externalist versions. It seems clear to say that a belief could be well-justified and yet false.
Related Idea
Idea 6150 The 'warrant' for a belief is what turns a true belief into knowledge [Merricks]