1. A method for representing at least one fuzzy set in a quantum system, comprising the steps of: (a) placing at least one quantum system into at least one quantum state, wherein the quantum state has associated projection probabilities relative to all other quantum states in a same Hilbert space or subspace; (b) forming a distribution from the projection probabilities of the at least one quantum state relative to a set composed of at least one quantum state in the same Hilbert space or subspace; and, (c) associating the distribution with the at least one fuzzy proposition through identification as the fuzzy membership function for that proposition.