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We show that one can describe the quark and lepton masses with a singleanomaly-free U(1) flavor symmetry provided a single order one parameter isenhanced by roughly 4-5. The flavor symmetry can be seen to arise from insidethe $E_6$ symmetry group in such a way that it commutes with the SU(5) grandunified gauge group. The scenario does not distinguish between the left-handedlepton doublets and hence is a model of neutrino anarchy. It can thereforeaccount for the large mixing observed in atmospheric neutrino experiments andpredicts that the solar neutrino oscillation data is consistent with the largemixing angle solution of matter-enhanced oscillations.Comment: 5 pages, 1 figur

Anomaly-free flavor symmetry and neutrino anarchy