Postmodernism, Knowledge, and the Correspondence Theory of Truth
Continuing a discussion of what postmodernism entails, it rejects the correspondence theory of truth, the notion that the truth of a proposition is a function of its correspondence with the “external” world, i.e., reality. One might also call this the classical theory of truth, since it was held by virtually everyone until the nineteenth century. As such, it is also the orthodox Christian view of truth. Truth, if it exists at all for the postmodernist, is relative to a linguistic community that shares the same narrative. Dichotomous thinking is also rejected. By this we mean the division of phenomonema into two groups, e.g., good/bad, true/false, real/unreal, beautiful/ugly. Assertions that use these terms are held to be relative to diverse groups of people. To claim that one is better than the other is meaningless outside of a group with a shared language, narrative, and culture because all such divisions are social constructions.
Also, rejected is the idea of universal, transcultural standards for determining whether a belief is true or false. There is no predefined rationality. The laws of logic, for example, or principles of inductive inference, are not universally valid. Rationality is held to be subjective in the sense that no one approaches life in a totally objective way without bias. Because there is no neutral standpoint from which to view the world, observations and beliefs are constructions that relect one’s own worldview. Knowledge itself is a construction of one’s social and linguistic structures, not a justified, truthful representation of reality.
Postmodernism rejects foundationalism as theory of epistemic justification. Briefly, foundationalism asserts that some beliefs are basic and do not need justification by other beliefs. All knowledge rests on the foundation of these properly basic beliefs. One example of properly basic beliefs might be the aforementioned laws of logic. One can simply “see” that if A is taller than B, and B is taller than C, then A is taller than C.