Attempts to analyse the notion of truth in terms of epistemic notions such as “belief”, “acceptance”, “verification“, “justification”, “perspective” and so on. There is a variety of such conceptions, and they may be classified into verificationist theories and perspectivalist and relativisttheories.

Verificationism is based on a certain kind of mental activity: “verifying” a proposition. The distinctive claim of verificationism is that the result of such verifications is, by definition, truth. That is, truth is reducible to this process of verification.

According to perspectivalism and relativism, a proposition is only true relative to a particular perspective. Roughly, a proposition is true relative to a perspective if and only if it is “accepted” or “endorsed” or “legitimated” somehow by that perspective.