  This argument is subject to at least two criticisms. For a start, it depends on a coherence theory of justification, and is vulnerable to any objections to this theory. More importantly, a coherence theory of truth does not follow from the premisses. We cannot infer from the fact that a proposition cannot be known to correspond to reality that it does not correspond to reality. Even if correspondence theorists admit that we can only know which propositions cohere with our beliefs, they can still hold that truth consists in correspondence. If correspondence theorists adopt this position, they accept that there may be truths which cannot be known. Alternatively, they can argue, as does Davidson (1986), that the coherence of a proposition with a set of beliefs is a good indication that the proposition corresponds to objective facts and that we can know that propositions correspond.