Presumption (Buddhism, Tibetan)

Presumption is compared with inference, in that although both may have a fresh reaching of a fresh conclusion, inference also implies a fresh conceptual understanding while presumption implies no real understanding of why the conclusion is correct. Presumption may be any of five kinds: there may be no real reason, for example simply hearing a statement without knowing why it is true; the reason may be contradictory, it may be non-determining, it may be irrelevant or it may be correct but the individual while putting forward the argument is not convinced of it himself. In other words, knowledge of something true is invalid because it is presumed true for no reason, for an invalid reason, or for a valid reason but without understanding of why it is correct.

One of the five invalid ways of knowing of Tibetan Buddhism.