A notion introduced by Florentin Smarandache: The probability (T, I, F) that an event occurs is calculated from different sources which may be contradictory or may overlap information; here T, I, F are real subsets representing the truth, indeterminacy, and falsity percentages respectively, and n_sup = sup(T)+sup(I)+sup(F) > 100.

["Neutrosophy / Neutrosophic probability, set, and logic", F. Smarandache, American Research Press, 1998].

See neutrosophic probability